Index:Proceedings of the Royal Society of London Vol 2.djvu

Title	Proceedings of the Royal Society of London, 2
Year	1833
Publisher	The Royal Society of London
Location	London
Source	djvu
Progress	To be proofread
Transclusion	Index not transcluded or unreviewed
Volumes	1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75

Pages (key to Page Status)

Cvr - - - - - Front - iii iv v vi vii viii ix x xi xii xiii xiv xv xvi xvii xviii xix xx xxi xxii xxiii xxiv xxv xxvi 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 - - - - - - - Cvr

CONTENTS.

 

VOL. II.

 

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1815.
Additional Observations on the Optical Properties and Structure of heated Glass and unannealed glass Drops. By David Brewster, LL.D. F.R.S. Edin. and F.S.A. Edin.		page 1
Description of a new Instrument for performing mechanically the Involution and Evolution of Numbers. By Peter M. Roget, M.D.		2
Experiments on the Depolarization of Light as exhibited by various mineral, animal, and vegetable Bodies, with a Reference of the Phenomena to the general Principles of Polarization. By David Brewster, LL.D. F.R.S. Edin. and F.S.A. Edin.		4
On an ebbing and flowing Stream discovered by boring in the Harbour of Bridlington. By John Storer, M.D.		6
On the Effects of simple Pressure in producing that Species of Crystallization which forms two oppositely polarized Images, and exhibits the complementary Colours by polarized Light. By David Brewster, LL.D. F.R.S. Edin. and F.S.A. Edin.		7
Experiments made with a View to ascertain the Principle on which the Action of the Heart depends, and the Relation which subsists between that Organ and the nervous System. By A. P. Wilson Philip		8
Experiments to ascertain the Influence of the Spinal Marrow on the Action of the Heart in Fishes. By Mr. William Clift		10
Some Experiments and Observations on the Colours used in Painting by the Ancients. By Sir Humphry Davy, LL.D. F.R.S.		11
On the Laws which regulate the Polarization of Light by Reflection from transparent Bodies. By David Brewster, LL.D. F.R.S. Edin. and F.S.A. Edin.		14
On some Phenomena of Colours, exhibited by thin Plates. By John Knox, Esq.		15
Some farther Observations on the Current that often prevails to the Westward of the Scilly Islands. By James Rennell, Esq. F.R.S.		17
Some Experiments on a Solid Compound of Iodine and Oxygen, and on its Chemical Agencies. By Sir Humphry Davy, LL.D. F.R.S.		19
On the Action of Acids on the Salts usually called Hyperoxymuriates, and on the Gases produced from them. By Sir Humphry Davy, LL.D. F.R.S.		20
Farther analytical Experiments relative to the Constitution of the prussic, of the ferruretted chyazic, and of the sulphuretted chyazic Acids, and to that of their Salts; together with the Application of the Atomic Theory to the Analyses of those Bodies. By Robert Porrett, jun. Esq.		21
On the Nature and Combinations of a newly discovered vegetable Acid; with Observations on the Malic Acid, and Suggestions on the State in which Acids may have previously existed in Vegetables. By M. Donovan, Esq.		22
On the Structure of the Organs of Respiration in Animals which appear to hold an intermediate Place between those of the Class Pisces and the Class Vermes, and in two Genera of the last-mentioned Class. By Sir Everard Home, Bart. V.P.R.S.		23
On the Mode of Generation of the Lamprey and Myxine. By Sir Everard Home, Bart. V.P.R.S.		24
On the Multiplication of Images, and the Colours which accompany them in some Specimens of calcareous Spar. By David Brewster, LL.D. F.R.S. Lond. and Edin.		25
A Series of Observations of the Satellites of the Georgian Planet, including a Passage through the Node of their Orbits; with an introductory Account of the telescopic Apparatus that has been used on this Occasion; and a final Exposition of some calculated Particulars deduced from the Observations. By William Herschel, LL.D. F.R.S.		25
An Account of some Experiments with a large Voltaic Battery. By J. G. Children, Esq. F.R.S.		26
On the dispersive Power of the Atmosphere, and its Effect on astronomical Observations. By Stephen Lee		28
Determination of the North Polar Distances and proper Motion of Thirty fixed Stars. By John Pond, Esq. F.R.S.		29
An Essay towards the Calculus of Functions. By C. Babbage, Esq.		29
Some additional Experiments and Observations on the Relation which subsists between the Nervous and Sanguiferous Systems. By A. P. Wilson Philip		29
1816.
On the Fire-damp of Coal Mines, and on Methods of lighting the Mines so as to prevent its Explosion. By Sir H. Davy, LL.D. F.R.S. V.P.R.I		page 30
An Account of an Invention for giving Light in explosive Mixtures of Fire-damp in Coal Mines, by consuming the Fire-damp. By Sir Humphry Davy, LL.D. F.R.S. V.P.R.I.		32
On the Developement of Exponential Functions; together with several new Theorems relating to finite Differences. By John Frederick W. Herschel, Esq. F.R.S.		33
On new Properties of Heat, as exhibited in its Propagation along Plates of Glass. By David Brewster, LL.D. F.R.S. Lond. and Edin.		33
Farther Experiments on the Combustion of explosive Mixtures confined by Wire-gauze; with some Observations on Flame. By Sir Humphry Davy, LL.D. F.R.S. V.P.R.I.		35
Some Observations and Experiments made on the Torpedo of the Cape of Good Hope in the Year 1812. By John T. Todd		36
Direct and expeditious Methods of calculating the Excentric from the Mean Anomaly of a Planet. By the Rev. Abram Robertson, D.D. F.R.S.		37
Demonstrations of the late Dr. Maskelyne's Formulas for finding the Longitude and Latitude of a celestial Object from its Right Ascension and Declination; and for finding its Right Ascension and Declination from its Longitude and Latitude, the obliquity of the Ecliptic being given in both cases. By the Rev. Abram Robertson, D.D. F.R.S.		38
Some Account of the Feet of those Animals whose progressive Motion can be carried on in opposition to Gravity. By Sir Everard Home, Bart. V.P.R.S.		38
On the Communication of the Structure of doubly-refracting Crystals to Glass, Muriate of Soda, Fluor Spar, and other Substances, by mechanical Compression and Dilatation. By David Brewster, LL.D. F.R.S. Lond. and Edin.		39
An Essay towards the Calculus of Functions. Part II. By C. Babbage, Esq.		41
Experiments and Observations to prove that the beneficial Effects of many Medicines are produced through the Medium of the circulating Blood, more particularly that of the Colchicum autumnale upon the Gout. By Sir Everard Home, Bart. V.P.R.S.		41
An Appendix to a Paper on the Effects of the Colchicum autumnale on Gout. By Sir Everard Home, Bart. V.P.R.S.		42
On the Cutting Diamond. By William Hyde Wollaston, M.D. Sec. R.S.		43
An Account of the Discovery of a mass of native Iron in Brasil. By A. F. Mornay, Esq.		43
Observations and Experiments on the Mass of native Iron found in Brasil. By William Hyde Wollaston, M.D. Sec. R.S.		45
On Ice found in the bottoms of Rivers. By Thomas Andrew Knight, Esq. F.R.S.		46
On the Action of detached Leaves of Plants. By Thomas Andrew Knight, Esq. F.R.S.		47
On the Manufacture of the Sulphate of Magnesia at Monte della Guardia, near Genoa. By H. Holland, M.D. F.R.S.		48
On the Formation of Fat in the Intestine of the Tadpole, and on the Use of the Yolk in the Formation of the Embryo in the Egg. By Sir Everard Home, Bart. V.P.R.S.		49
On the Structure of the Crystalline Lens in Fishes and Quadrupeds, as ascertained by its Action on Polarized Light. By David Brewster, LL.D. F.R.S. Lond. and Edin.		50
Some farther Account of the Fossil Remains of an Animal, of which a Description was given to the Society in 1814. By Sir Everard Home, Bart. V.P.R.S.		51
Farther Observations on the Feet of Animals whose progressive Motion can be carried on against Gravity. By Sir Everard Home, Bart. V.P.R.S.		51
A new Demonstration of the Binomial Theorem. By Thomas Knight, Esq.		52
On the Fluents of irrational Functions. By Edward Ffrench Bromhead, Esq. M.A.		52
	1817.
An Account of the Circulation of the Blood in the Class Vermes of Linnaeus, and the principle explained in which it differs from that in the higher Classes. By Sir Everard Home, Bart. V.P.R.S.		page 53
Observations on the Hirudo vulgaris. By James Rawlins Johnson. M.D. F.L.S. &c.		54
On the Effects of Galvanism in restoring the due Action of the Lungs. By A. P. Wilson Philip		55
Account of some Experiments on the Torpedo electricus, at La Rochelle. By John T. Todd, Esq.		57
A Description of a Process, by which Corn tainted with Must may be completely purified. By Charles Hatchett, Esq. F.R.S.		57
Observations on an astringent Vegetable Substance from China. By William Thomas Brande, Esq. Sec. R.S.		58
Some Researches on Flame. By Sir Humphry Davy, LL.D. F.R.S. V.P.R.I.		59
Some new Experiments and Observations on the Combustion of gaseous Mixtures; with an Account of a Method of preserving a continued Light in Mixtures of inflammable Gases and Air without Flame. By Sir Humphry Davy, LL.D. F.R.S. V.P.R.I.		61
De la Structure des Vaisseaux Anglais, consideree dans ses derniers Perfectionnements. Par Charles Dupin		62
On a new Fulminating Platinum. By Edmund Davy, Esq.		63
On the Parallax of the fixed Stars. By John Pond, Esq. F.R.S.		65
Appendix to Mr. Pond's Paper on Parallax		66
An Account of some Fossil Remains of the Rhinoceros, discovered by Mr. Whitby, in a Cavern inclosed in the Lime-stone Rock, from which he is forming the Break-water at Plymouth. By Sir Everard Home, Bart. V.P.R.S.		66
Description of a thermometrical Barometer for measuring Altitudes. By the Rev. Francis John Hyde Wollaston, B.D. F.R.S.		68
Observations on the Analogy which subsists between the Calculus of Functions and other branches of Analysis. By Charles Babbage, Esq. M.A. F.R.S.		69
Of the Construction of Logarithmic Tables. By Thomas Knight, Esq.		69
Two General Propositions in the Method of Differences. By Thomas Knight, Esq.		70
Note respecting the Demonstration of the Binomial Theorem inserted in the last Volume of the Philosophical Transactions. By Thomas Knight, Esq.		70
On the Passage of the Ovum from the Ovarium to the Uterus in Women. By Sir Everard Home, Bart. V.P.R.S.		70
Some farther Observations on the Use of the Colchicum autumnale in Gout. By Sir Everard Home, Bart. V.P.R.S.		71
Upon the Extent of the Expansion and Contraction of Timber in different directions relative to the Position of the Medulla of the Tree. By Thomas Andrew Knight, Esq. F.R.S.		73
Observations on the Temperature of the Ocean and Atmosphere, and on the Density of Sea-water, made during a Voyage to Ceylon. By John Davy, M.D. F.R.S.		73
Observations on the Genus Ocythoe of Rafinesque, with a Description of a new Species. By William Elford Leach, M.D. F.R.S.		75
The distinguishing Characters between the Ova of the Sepia, and those of the Vermes Testacea, that live in Water, explained. By Sir Everard Home, Bart. V.P.R.S.		75
Astronomical Observations and Experiments tending to investigate the local Arrangement of the Celestial Bodies in Space, and to determine the Extent and Condition of the Milky Way. By Sir William Herschel, Knt. Guelp. LL.D. F.R.S.		76
Some Account of the Nests of the Java Swallow, and of the Glands that secrete the Mucus of which they are composed. By Sir Everard Home, Bart. V.P.R.S.		77
Observations on the Hirudo complanata, and Hirudo stagnalis, now formed into a distinct Genus under the name, Glossopora. By Dr. Johnson, of Bristol.		78
Observations on the Gastric Glands of the human Stomach, and the Contraction which takes place in that Viscus. By Sir Everard Home, Bart. V.P.R.S.		79
On the Parallax of the fixed Stars. By John Pond, Esq. F.R.S.		79
1818.
On the great Strength given to Ships of War by the application of Diagonal Braces. By Robert Seppings, Esq. F.R.S.		page 80
A Memoir on the Geography of the North-eastern part of Asia, and on the Question whether Asia and America are contiguous, or are separated by the Sea. By Captain James Burney, F.R.S.		81
Additional Facts respecting the Fossil Remains of an Animal, on the subject of which two Papers have been printed in the Philosophical Transactions, showing that the Bones of the Sternum resemble those of the Ornithorhynchus paradoxus. By Sir Everard Home, Bart. V.P.R.S.		82
An Account of Experiments for determining the Length of the Pendulum vibrating Seconds in the Latitude of London. By Captain Henry Kater, F.R.S.		83
On the Length of the French Metre estimated in parts of the English Standard. By Captain Henry Kater, F.R.S.		85
A few Facts relative to the Colouring Matters of some Vegetables. By James Smithson, Esq. F.R.S.		86
Account of Experiments made on the Strength of Materials. By George Rennie, jun. Esq.		87
On the Office of the Heart Wood of Trees. By T. A. Knight, Esq. F.R.S.		88
On Circulating Functions, and on the Integration of a Class of Equations of Finite Differences into which they enter as Coefficients. By John F. W. Herschel, Esq. F.R.S.		89
On the Fallacy of the Experiments in which Water is said to have been formed by the Decomposition of Chlorine. By Sir Humphry Davy, LL.D. F.R.S.		89
The Croonian Lecture. On the Changes the Blood undergoes in the act of Coagulation. By Sir Everard Home, Bart. V.P.R.S.		90
Some Additions to the Croonian Lecture, on the Changes the Blood undergoes in the Act of Coagulation. By Sir Everard Home, Bart. V.P.R.S.		91
On the Laws of Polarization and Double Refraction in regularly Crystallized Bodies. By David Brewster, LL.D. F.R.S. L. & E.		92
On the Parallax of certain fixed Stars. By the Rev. John Brinkley, D.D. F.R.S.		93
On the Urinary Organs and Secretions of some of the Amphibia. By John Davy, M.D. F.R.S.		94
On a Mal-conformation of the Uterine System in Women; and on some Physiological Conclusions to be derived from it. In a Letter to Sir Everard Home, Bart. V.P.R.S. from A. B. Granville, M.D. F.R.S. F.L.S.		95
New Experiments on some of the Combinations of Phosphorus. By Sir H. Davy, LL.D. F.R.S. V.P.R.I.		95
New Experimental Researches on some of the leading Doctrines of Caloric; particularly on the Relation between the Elasticity, Temperature, and latent Heat of different Vapours; and on Thermometric Admeasurement and Capacity. By Andrew Ure, M.D.		97
Observations on the Heights of Mountains in the North of England. By Thomas Greatorex, Esq. F.L.S.		98
On the Different Methods of Constructing a Catalogue of fixed Stars. By J. Pond, Esq. F.R.S.		99
A Description of the Teeth of the Delphinus Gangeticus. By Sir Everard Home, Bart. V.P.R.S.		99
Description of an Acid Principle prepared from the Lithic or Uric Acid. By William Prout, M.D.		100
Astronomical Observations and Experiments, selected for the purpose of ascertaining the relative Distances of Clusters of Stars, and of investigating how far the Power of our Telescopes may be expected to reach into Space, when directed to ambiguous Celestial Objects. By Sir William Herschel, Knt. Guelp. LL.D. F.R.S.		100
On the Structure of the Poisonous Fangs of Serpents.  By Thomas Smith, Esq. F.R.S.		101
On the Parallax of α Aquilæ. By John Pond, Esq. F.R.S.		101
On the Parallax of the Fixed Stars in Right Ascension. By John Pond, Esq. F.R.S.		102
An Abstract of the Results deduced from the Measurement of an Arc on the Meridian, extending from Latitude 8° 9' 38"·4, to Latitude 18° 3' 23"·6 N., being an Amplitude of 9° 53' 45"·2. By Lieut. Col. William Lambton, F.R.S.		102
1819.
The Croonian Lecture. On the Conversion of Pus into Granulations or New Flesh. By Sir Everard Home, Bart. V.P.R.S.		103
On the Laws which regulate the Absorption of Polarized Light by Doubly Refracting Crystals. By David Brewster,LL.D. F.R.S. L.& E.		104
Observations sur la Decomposition de 1'Amidon a la Temperature Atmospherique par l'Action de l'Air et de l'Eau. Par Theodore de Saussure		105
On Corpora Lutea. By Sir Everard Home, Bart. V.P.R.S.		106
Remarks on the Probabilities of Error in Physical Observations, and on the Density of the Earth, considered, especially with regard to the Reduction of Experiments on the Pendulum. By Thomas Young, M.D. For. Sec. R.S.		106
On the Anomaly in the Variation of the Magnetic Needle as observed on Ship-board. By William Scoresby, jun. Esq.		108
On the Genus Ocythoë; being an Extract of a Letter from Thomas Say, Esq. of Philadelphia, to William Elford Leach, M.D. F.R.S.		108
On Irregularities observed in the Direction of the Compass Needles of H.M.S. Isabella and Alexander, in their late Voyage of Discovery, and caused by the Attraction of the Iron contained in the Ships. By Captain Edward Sabine, F.R.S.		109
Some Observations on the Formation of Mists in particular Situations. By Sir Humphry Davy, Bart. F.R.S. V.P.R.I.		110
Observations on the Dip and Variation of the Magnetic Needle, and on the Intensity of the Magnetic Force; made during the late Voyage in search of a North-west Passage. By Captain Edward Sabine, F.R.S. F.L.S.		110
On the Action of Crystallized Surfaces upon Light. By David Brewster, LL.D. F.R.S. L.& E.		111
On the Specific Gravity and Temperature of Sea- Waters, in different Parts of the Ocean, and in particular Seas; with some Account of their Saline Contents. By Alexander Marcet, M.D. F.R.S.		111
An Account of the Fossil Skeleton of the Proteo-Saurus. By Sir Everard Home, Bart. V.P.R.S.		113
Reasons for giving the name Proteo-Saurus to the Fossil Skeleton which has been described. By Sir Everard Home, Bart. V.P.R.S.		113
Some Observations on the Peculiarity of the Tides between Fairleigh and the North Foreland; with an Explanation of the supposed Meeting of the Tides near Dungeness. By Captain James Anderson, R.N.		113
On the Ova of the different Tribes of Opossum and Ornithorhynchus. By Sir Everard Home, Bart. V.P.R.S.		114
The Results of Observations made at the Observatory of Trinity College, Dublin, for determining the Obliquity of the Ecliptic, and the Maximum of the Aberration of Light. By the Rev. J. Brinkley, D.D. F.R.S. M.R.I.A.		114
On some New Methods of investigating the Sums of several Classes of Infinite Series. By Charles Babbage, Esq. A.M. F.R.S.		115
On the Optical and Physical Properties of Tabasheer. By David Brewster, LL.D. F.R.S. L.& E.		115
An Account of a Membrane in the Eye, now first described. By Arthur Jacob, M.D.		116
A New Method of Solving Numerical Equations of all Orders, by continuous Approximation. By W. G. Homer, Esq.		117
An Account of Experiments for determining the Variation in the Length of the Pendulum Vibrating Seconds, at the principal Stations of the Trigonometrical Survey of Great Britain. By Captain Henry Kater, F.R.S.		117
1820.
The Croonian Lecture. A further Investigation of the Component Parts of the Blood. By Sir Everard Home, Bart. V.P.R.S.		page 118
The Bakerian Lecture. On the Composition and Analysis of the Inflammable Gaseous Compounds resulting from the Destructive Distillation of Coal and Oil, with some Remarks on their relative Heating and Illuminating Powers. By William Thomas Brande, Esq. Sec.R.S.		119
On the Elasticity of the Lungs. By James Carson, M.D.		121
On the Action of Crystallized Bodies on Homogeneous Light, and on the Causes of the Deviation from Newton's Scale in the Tints which many of them develope on Exposure to a Polarized Ray. By J. F. W. Herschel, Esq. F.R.S. L. & E.		122
A Case of the Human Foetus found in the Ovarium, of the Size it usually acquires at the End of the Fourth Month. By A. B. Granville, M.D. F.R.S.		123
On some Combinations of Platinum. By Edmund Davy, Esq.		124
On the Methods of Cutting Rock Crystal for Micrometers. By William Hyde Wollaston, M.D. F.R.S.		124
On a New Principle of constructing Ships in the Mercantile Navy. By Sir Robert Seppings, F.R.S.		125
On the Milk Tusks, and Organ of Hearing of the Dugong. By Sir Everard Home, Bart. V.P.R.S.		126
Upon the different Qualities of the Alburnum of Spring and Winter-felled Oak Trees. By Thomas Andrew Kight, Esq. F.R.S.		127
On the Mode of Formation of the Canal for containing the Spinal Marrow, and on the Form of the Fins (if they deserve that name) of the Proteo-Saurus. By Sir Everard Home, Bart. V.P.R.S.		128
Some Experiments on the Fungi which constitute the Colouring Matter of the Red Snow discovered in Baffin's Bay. By Francis Bauer, Esq. F.L.S.		128
Some Account of the Dugong. By Sir Thomas Stamford Raffles		129
Observations on the Human Urethra, showing its internal Structure, as it appeared in the Microscope of F. Bauer, Esq. By Sir Everard Home, Bart. V.P.R.S.		130
On the Errors in Longitude as determined by Chronometers at Sea, arising from the Action of the Iron in the Ships upon the Chronometers. By George Fisher, Esq.		130
An Account of a New Mode of performing the High Operation for the Stone. By Sir Everard Home, Bart. V.P.R.S.		131
A Sketch of an Analysis and Notation applicable to the Estimation of the Value of Life Contingencies. By Benjamin Gompertz, Esq. F.R.S.		132
On the Measurement of Snowdon, by the Thermometrical Barometer. By the Rev. F. J. H. Wollaston, B.D. F.R.S.		132
On Sounds Inaudible by certain Ears. By William Hyde Wollaston, M.D. P.R.S.		133
Particulars respecting the Anatomy of the Dugong, intended as a Supplement to Sir T. S. Raffles's Account of that Animal. By Sir Everard Home, Bart. F.R.S.		134
On the Compressibility of Water. By Jacob Perkins, Esq.		134
Astronomical Observations. By Stephen Groombridge, Esq. F.R.S.		135
1821.
On the Black Rete Mucosum of the Negro being a Defence against the Scorching Effect of the Sun's Rays. By Sir Everard Home, Bart. F.R.S.		page 135
On the Magnetic Phenomena produced by Electricity. In a Letter from Sir Humphry Davy, Bart. F.R.S. to W. H. Wollaston, M.D. P.R.S.		136
A Communication of a singular Fact in Natural History. By the Right Honourable the Earl of Morton, F.R.S.		137
Particulars of a Fact, nearly similar to that related by Lord Morton, communicated to the President, in a Letter from Daniel Giles, Esq.		137
The Croonian Lecture. Microscopical Observations on the following Subjects. On the Brain and Nerves; showing that the Materials of which they are composed exist in the Blood. On the Discovery of Valves in the Branches of the Vas breve, lying between the Villous and Muscular Coats of the Stomach. On the Structure of the Spleen. By Sir Everard Home, Bart. V.P.R.S.		137
On Two New Compounds of Chlorine and Carbon, and on a New Compound of Iodine, Carbon, and Hydrogen. By Mr. Faraday.		138
An Account of the Comparison of various British Standards of Linear Measure. By Captain Henry Kater, F.R.S.		139
An Account of the Urinary Organs and Urine of Two Species of the genus Rana. By John Davy, M.D. F.R.S.		140
An Account of a Micrometer made of Rock Crystal. By G. Dollond, F.R.S.		141
The Bakerian Lecture. On the best kind of Steel and Form for a Compass Needle. By Captain Henry Kater, F.R.S.		141
Notice respecting a Volcanic Appearance in the Moon. By Captain Henry Kater, F.R.S.		142
A Further Account of Fossil Bones discovered in Caverns inclosed in the Lime-stone Rocks at Plymouth. By Joseph Whidbey, Esq.		142
On the Aeriform Compounds of Charcoal and Hydrogen; with an Account of some Additional Experiments on the Gases from Oil and from Coal. By William Henry, M.D. F.R.S.		143
An Account of Experiments to determine the Acceleration of the Pendulum in different Latitudes. By Captain Edward Sabine, F.R.S. and F.L.S.		144
Some Observations and Experiments on the Papyri found in the Ruins of Herculaneum. By Sir Humphry Davy, Bart P.R.S.		145
Observations on Naphthaline, a peculiar Substance resembling a Concrete Essential Oil, which is apparently produced during the Decomposition of Coal Tar, by Exposure to a Red Heat. By J. Kidd, M.D.		146
On the Aberrations of Compound Lenses and Object-Glasses. By J. F. W. Herschel, Esq. P.R.S. &c.		146
An Account of the Skeletons of the Dugong, Two-homed Rhinoceros, and Tapir of Sumatra, sent to England by Sir Thomas Stamford Raffles, Governor of Beucoolen. By Sir Everard Home, Bart. V.P.R.S.		147
On the Mean Density of the Earth. By Dr. Charles Button, F.R.S.		148
On the Separation of Iron from other Metals. By J. F. W. Herschel, Esq. F.R.S.		148
On the Re-establishment of a Canal in the Place of a Portion of the Urethra which had been destroyed. By Henry Earle, Esq.		149
Calculations of some Observations of the Solar Eclipse on the 7th of September, 1820. By Mr. Charles Rumker		150
An Account of the Re-measurement of the Cube, Cylinder, and Sphere, used by the late Sir George Shuckburgh Evelyn, in his Inquiries respecting a Standard of Weights and Measures. By Captain Henry Kater, F.R.S.		150
An Account of Observations made with the Eight-Feet Astronomical Circle, at the Observatory of Trinity College, Dublin, since the Beginning of the Year 1818, for Investigating the Effects of Parallax and Aberration on the Places of certain fixed Stars; also the Comparison of these with former Observations for determining the Effects of Lunar Nutation. By the Reverend John Brinkley, D.D. F.R.S. and M.R.I.A.		151
On the Effects produced in the Rates of Chronometers by the Proximity of Masses of Iron. By Peter Barlow, Esq.		152
On the Peculiarities that distinguish the Manatee of the West Indies from the Dugong of the East Indian Seas. By Sir Everard Home, Bart. V.P.R.S.		152
On a New Compound of Chlorine and Carbon. By Richard Phillips, F.R.S.E. F.L.S. M.G.S. &c. and Michael Faraday		153
On the Nerves; giving an Account of some Experiments on their Structure and Functions, which lead to a new Arrangement of the System. By Charles Bell, Esq.		153
Further Researches on the Magnetic Phenomena produced by Electricity; with some New Experiments on the Properties of Electrified Bodies in their Relations to Conducting Powers and Temperature. By Sir Humphry Davy, Bart. P.R.S.		154
1822.
The Bakerian Lecture. An Account of Experiments to determine the Amount of the Dip of the Magnetic Needle in London, in August 1821; with Remarks on the Instruments which are usually employed in such Determinations. By Captain Edward Sabine, F.R.S.		155
Some Positions respecting the Influence of the Voltaic Battery in obviating the Effects of the Division of the Eighth Pair of Nerves. Drawn up by A. P. Wilson Philip, M.D. F.R.S. Edinb.		156
On some Alvine Concretions found in the Colon of a young Man in Lancashire, after Death. By J. G. Children, Esq. F.R.S. &c. &c.		156
On the Concentric Adjustment of a Triple Object-Glass. By William Hyde Wollaston, M.D. V.P.R.S.		157
On a New Species of Rhinoceros found in the interior of Africa, the Skull of which bears a close Resemblance to that found in a Fossil State in Siberia and other Countries. By Sir Everard Home, Bart. V.P.R.S.		157
Extract of a Letter from Captain Basil Hall, R.N. F.R.S. to William Hyde Wollaston, M.D. V.P.R.S. containing Observations of a Comet seen at Valparaiso		158
Elements of Captain Hall's Comet. By J. Brinkley, D.D. F.R.S. and M.R.I.A.		158
On the Electrical Phenomena exhibited in Vacuo. By Sir Humphry Davy, Bart. P.R.S.		159
Croonian Lecture. On the Anatomical Structure of the Eye; illustrated by Microscopical Drawings, executed by F. Bauer, Esq. By Sir Everard Home, Bart. V.P.R.S.		159
A Letter from John Pond, Esq. to Sir Humphry Davy, Bart. P.R.S. relative to a Derangement in the Mural Circle at the Royal Observatory.		160
On the Finite Extent of the Atmosphere. By William Hyde Wollaston, M.D. V.P.R.S.		160
On the Expansion in a Series of the Attraction of a Spheroid. By James Ivory, M.A. F.R.S.		162
On the late Extraordinary Depression of the Barometer. By Luke Howard, Esq. F.R.S.		163
On the anomalous Magnetic Action of Hot Iron between the White and Blood-red Heat. By Peter Barlow, Esq.		164
Observations for ascertaining the Length of the Pendulum at Madras in the East Indies, Latitude 13° 4' 9"·l N.; with the Conclusions drawn from the same. By John Goldingham, Esq. F.R.S.		165
Account of an Assemblage of Fossil Teeth and Bones of Elephant, Rhinoceros, Hippopotamus, Bear, Tiger, and Hyaena, and sixteen other Animals; discovered in a Cave at Kirkdale, Yorkshire, in the year 1821: with a comparative View of five similar Caverns in various Parts of England, and others on the Continent. By the Rev. William Buckland, F.R.S.		165
Communication of a curious appearance lately observed upon the Moon. By the Rev. Fearon Fallows		167
On the Difference in the Appearance of the Teeth and the Shape of the Skull in different Species of Seals. By Sir Everard Home, Bart. V.P.R.S.		168
Experiments and Observations on the Developement of Magnetical Properties in Steel and Iron by Percussion. By William Scoresby, Jun. Esq.		168
On the Alloys of Steel. By J. Stodart, Esq. F.R.S. and Mr. Faraday		169
Some Observations on the Buffy Coat of the Blood, &c. By John Davy, M.D. F.R.S.		170
On the Mechanism of the Spine. By Henry Earle, Esq. F.R.S.		170
Of the Nerves which associate the Muscles of the Chest, in the actions of Breathing, Speaking, and Expression. Being a Continuation of the Paper on the Structure and Functions of the Nerves. By Charles Bell, Esq.		171
Experiments and Observations on the Newry Pitch-stone, and its Products, and on the Formation of Pumice. By the Right Hon. George Knox, F.R.S.		172
Observations on the Changes the Egg undergoes during Incubation in the common Fowl, illustrated by Microscopical Drawings. By Sir Everard Home, Bart. V.P.R.S.		172
Some Observations on Corrosive Sublimate. By John Davy, M.D. F.R.S.		173
On the State of Water and Aeriform Matter in Cavities found in certain Crystals. By Sir Humphry Davy, Bart. P.R.S.		174
Some Experiments on the Changes which take place in the fixed Principles of the Egg during Incubation. By William Prout, M.D. F.R.S.		175
On the Placenta. By Sir Everard Home, Bart. V.P.R.S.		176
Of the Geographical Situation of the Three Presidencies, Calcutta, Madras, and Bombay, in the East Indies. By J. Goldingham, Esq. F.R.S.		176
Of the Difference of Longitudes found by Chronometer, and by correspondent Eclipses of the Satellites of Jupiter; with some supplementary Information relative to Madras, Bombay, and Canton; as also the Latitude and Longitude of Point de Galle and the Friar's Hood. By J. Goldingham, Esq. F.R.S.		177
Observations on the Genus Planaria. By J. R. Johnson, M.D. F.R.S.		177
Some Experiments and Researches on the Saline Contents of Sea- water, undertaken with a view to correct and improve its Chemical Analysis. By Alexander Marcet, M.D. F.R.S.		178
On the Ultimate Analysis of Vegetable and Animal Substances. By Andrew Ure, M.D. F.R.S.		179
1823.
The Croonian Lecture. Microscopical Observations on the Suspension of the Muscular Motions of the Vibrio tritici. By Francis Bauer, Esq. F.R.S. F.L.S. and H.S.		page 179
On Metallic Titanium. By W. H. Wollaston, M.D. V.P.R.S.		180
On the Difference of Structure between the Human Membrana Tympani and that of the Elephant. By Sir Everard Home, Bart. V.P.R.S.		181
Corrections applied to the Great Meridional Arc, extending from Latitude 8° 9' 38"·39 to Latitude 18° 3' 23"·64, to reduce it to the Parliamentary Standard. By Lieut. Col. W. Lambton, F.R.S.		182
On the Changes which have taken place in the Declination of some of the principal fixed Stars. By John Pond, Esq. F.R.S.		182
Appendix to the preceding Paper on the Changes which appear to have taken place in the Declination of some of the fixed Stars. By John Pond, Esq. F.R.S.		183
On the Parallax of α Lyræ. By John Pond, Esq. F.R.S.		184
Observations on the Heights of Places in the Trigonometrical Survey of Great Britain, and upon the Latitude of Arbury Hill. By B. Bevan, Esq.		185
On some Fossil Bones discovered in Caverns in the Limestone Quarries of Oreston. By Joseph Whidbey, Esq. F.R.S. To which is added, a Description of the Bones by Mr. William Clift		186
On the Chinese Year. By J. F. Davis, Esq. F.R.S.		187
Experiments for ascertaining the Velocity of Sound, at Madras in the East Indies. By John Goldingham, Esq. F.R.S.		188
On the Double Organs of Generation of the Lamprey, the Conger Eel, the common Eel, the Barnacle, and Earth Worm, which impregnate themselves; though the last, from copulating, appear mutually to impregnate one another. By Sir Everard Home, Bart. V.P.R.S.		188
On a New Phenomenon of Electro-magnetism. By Sir Humphry Davy, Bart. P.R.S.		189
On Fluid Chlorine. By M. Faraday		190
On the Motions of the Eye, in illustration of the Uses of the Muscles and Nerves of the Orbit. By Charles Bell, Esq.		190
An Account of an Apparatus on a peculiar Construction for performing Electro-magnetic Experiments. By W. H. Pepys, Esq. F.R.S.		192
On the Condensation of several Gases into Liquids. By Mr. Faraday		192
On the Application of Liquids formed by the Condensation of Gases as Mechanical Agents. By Sir Humphry Davy, Bart. P.R.S.		193
On the Temperature at considerable Depths of the Caribbean Sea. By Captain Edward Sabine, F.R.S.		193
Letter from Captain Basil Hall, R.N. to Captain Kater, communicating the Details of Experiments made by him and Mr. Henry Foster, with an Invariable Pendulum, in London; at the Galapagos Islands in the Pacific Ocean, near the Equator; at San Bias de California on the N.W. Coast of Mexico; and at Rio de Janeiro in Brazil. With an Appendix, containing the Second Series of Experiments in London, on the Return		193
Second Part of the Paper on the Nerves of the Orbit.  By Charles Bell, Esq.		195
An Account of Experiments made with an Invariable Pendulum at New South Wales, by Major-General Sir Thomas Brisbane, K.C.B. F.R.S.		196
Observations and Experiments on the Daily Variation of the Horizontal and Dipping Needles under a reduced Directive Power. By Peter Barlow, Esq. F.R.S.		197
On the Diurnal Deviations of the Horizontal Needle when under the influence of Magnets. By Samuel Hunter Christie, Esq. M.A.		197
On Fossil Shells. By Lewis Weston Dillwyn, Esq. F.R.S.		198
On the apparent Magnetism of Metallic Titanium. By William Hyde Wollaston, M.D. V.P.R.S.		199
An Account of the Effect of Mercurial Vapours on the Crew of His Majesty's Ship Triumph, in the Year 1810. By William Burnett, M.D.		200
On the Astronomical Refractions. By J. Ivory, A.M. F.R.S.		200
Observations on Air found in the Pleura, in a Case of Pneumato- thorax; with Experiments on the Absorption of different kinds of Air introduced into the Pleura. By John Davy, M.D. F.R.S.		202
On Bitumen in Stones. By the Right Hon. George Knox, F.R.S.		202
On certain Changes which appear to have taken place in the Positions of some of the principal fixed Stars. By John Pond, Esq. F.R.S.		203
1824.
The Croonian Lecture. On the Internal Structure of the Human Brain, when examined in the Microscope, as compared with that of Fishes, Insects and Worms. By Sir Everard Home, Bart. V.P.R.S.		page 203
Some Observations on the Migration of Birds. By the late Edward Jenner, M.D. F.R.S.; with an Introductory Letter to Sir Humphry Davy, Bart. P.R.S. By the Rev. G. C. Jenner		204
On the Nature of the Acid and Saline Matters usually existing in the Stomachs of Animals. By William Prout, M.D. F.R.S.		204
On the North Polar Distances of the principal fixed Stars. By John Brinkley, D.D. F.R.S. &c.		205
On the Figure requisite to maintain the Equilibrium of a Homogeneous Fluid Mass that revolves upon an Axis. By James Ivory, A.M. F.R.S.		206
On the Corrosion of Copper-sheeting by Sea-water, and on Methods of preventing this Effect; and on their Application to Ships of War and other Ships. By Sir Humphry Davy, Bart. P.R.S.		207
A finite and exact Expression for the Refraction of an Atmosphere nearly resembling that of the Earth. By Thomas Young, M.D. For. Sec. R.S.		207
The Bakerian Lecture. On certain Motions produced in Fluid Con- ductors when transmitting the Electric Current. By J. F. W. Herschel, Esq. F.R.S.		208
Experiments and Observations on the Development of Magnetical Properties in Steel and Iron by Percussion. Part II. By William Scoresby, Jun. F.R.S.E. &c.		210
On Semi-decussation of the Optic Nerves.  By William Hyde Wollaston, M.D. V.P.R.S.		211
Some curious Facts respecting the Walrus and Seal, discovered by the Examination of Specimens brought to England by the different Ships lately returned from the Polar Circle. By Sir Everard Home, Bart. V.P.R.S.		213
Additional Experiments and Observations on the Application of Electrical Combinations to the Preservation of the Copper Sheathing of Ships, and to other purposes. By Sir Humphry Davy, Bart. P.R.S.		213
On the apparent Direction of Eyes in a Portrait. By William Hyde Wollaston, M.D. F.R.S. and V.P.		214
Further Particulars of a Case of Pneumato-thorax. By John Davy, M.D. F.R.S.		215
On the Action of finely divided Platinum on Gaseous Mixtures, and its Application to their Analysis. By William Henry, M.D. F.R.S.		216
A Comparison of Barometrical Measurement, with the trigonometrical Determination of a Height at Spitzbergen. By Captain Edward Sabine, F.R.S.		217
Experimental Inquiries relative to the Distribution and Changes of the Magnetic Intensity in Ships of War. By George Harvey, Esq.		218
Experiments on the Elasticity and Strength of Hard and Soft Steel. By Mr. Thomas Tredgold		218
A short Account of some Observations made with Chronometers, in two Expeditions sent out by the Admiralty, at the recommendation of the Board of Longitude, for ascertaining the Longitude of Madeira and of Falmouth. By Dr. John Lewis Tiarks		219
Of the Effects of the Density of Air on the Rates of Chronometers. By George Harvey, F.R.S.E. &c.		220
A Letter from Lewis Weston Dillwyn, Esq. addressed to Sir Hum- phry Davy, Bart. P.R.S.		221
An Account of the Organs of Generation of the Mexican Proteus, called by the Natives Axolotl. By Sir Everard Home, Bart. V.P.R.S.		221
An Account of Experiments on the Velocity of Sound, made in Holland. By Dr. G. Moll and Dr. A. Van Beek		221
A Catalogue of nearly all the principal fixed Stars between the Zenith of Cape Town, Cape of Good Hope, and the South Pole, reduced to the 1st of January, 1824. By the Rev. Fearon Fallows, M.A. F.R.S.		222
Remarks on the Parallax of αLyræ. By J. Brinkley, D.D. F.R.S. &c.		222
Observations of the apparent Distances and Positions of 380 Double and Triple Stars, made in the Years 1821, 1822, and 1823, and compared with those of other Astronomers; together with an Account of such Changes as appear to have taken place in them since their first Discovery. Also a description of a Five-feet Equatorial Instrument employed in the Observations. By John Frederick William Herschel, Esq. F.R.S. and James South, Esq. F.R.S.		224
1825.
On the Effects of Temperature on the Intensity of Magnetic Forces; and on the Diurnal Variation of the Terrestrial Magnetic Intensity. By Samuel Hunter Christie, Esq. M.A.		page 225
The Croonian Lecture. On the Existence of Nerves in the Placenta. By Sir Everard Home, Bart. V.P.R.S.		226
Observations on the Changes the Ovum of the Frog undergoes during the formation of the Tadpole. By Sir Everard Home, Bart. V.P.R.S.		227
A general Method of calculating the Angles made by any Planes of Crystals, and the Laws according to which they are formed. By the Rev. W. Whewell, F.R.S.		227
Explanation of an Optical Deception in the Appearance of the Spokes of a Wheel seen through vertical Apertures. By P. M. Roget, M.D. F.R.S.		230
On a new Photometer, with its application to determine the relative Intensities of Artificial Light, &c. By William Ritchie, A.M.		231
The Description of a Floating Collimator. By Captain Henry Kater, F.R.S.		232
Notice on the Iguanodon, a newly discovered Fossil Reptile, from the Sandstone of Tilgate Forest, in Sussex. By Gideon Mantell, F.L.S. and M.G.S.		234
An experimental enquiry into the Nature of the radiant heating effects from terrestrial sources. By Baden Powell, M.A. F.R.S.		235
On the Anatomy of the Mole-cricket. By J. Kidd, M.D. and F.R.S.		236
Further Observations on Planariae. By J. R. Johnson, M.D. F.R.S.		238
On the Influence of Nerves and Ganglions in producing Animal Heat. By Sir Everard Home, Bart. V.P.R.S.		238
An Essay on Egyptian Mummies; with Observations on the Art of . Embalming among the ancient Egyptians. By A. B. Granville, M.D. F.R.S. F.L.S. F.G.S. M.R.I.		240
On the temporary Mas^netic Effect induced in Iron Bodies by Rotation. By Peter Barlow, F.R.S.		241
Further Researches on the Preservation of Metals by Electro-chemical Means. By Sir Humphry Davy, Bart. P.R.S.		242
On the Magnetism of Iron arising from its Rotation. By Samuel Hunter Christie, Esq. M.A.		243
Some Account of the Transit Instrument made by Mr. Dollond, and lately put up at the Cambridge Observatory. By Robert Woodhouse, A.M. F.R.S.		246
On the fossil Elk of Ireland. By Thomas Weaver, Esq.		246
Microscopical Observations on the Materials of the Brain, and of the Ova of Animals, to show the analogy that exists between them. By Sir Everard Home, Bart. V.P.R.S.		247
On new Compounds of Carbon and Hydrogen, and on certain other Products obtained during the Decomposition of Oil by Heat. By M. Faraday, F.R.S.		248
Account of the Repetition of M. Arago's Experiments on the Magnetism manifested by various Substances during the Act of Rotation. By C. Babbage, Esq. F.R.S. and J. F. W. Herschel, Esq. Sec. R.S.		249
On the Magnetism developed in Copper and other Substances during Rotation. In a Letter from Samuel Hunter Christie, Esq. M.A. &c. to J. F. W. Herschel, Esq. Sec. R.S.		251
On the annual Variations of some of the principal Fixed Stars. By J. Pond, Esq. F.R.S.		253
On the Nature of the Function expressive of the Law of Human Mortality, and on a new Mode of determining the Value of Life Contingencies. By Benjamin Gompertz, Esq. F.R.S.		252
1826.
servations of the apparent distances and positions of 458 Double and Triple Stars, made in the Years 1823, 1824, and 1825; together with a re-examination of 36 Stars of the same description, the distances and positions of which were communicated in a former Memoir. By James South, Esq. F.R.S.		page 253
An Account of the Construction and Adjustment of the New Standards of Weights and Measures of the United Kingdom of Great Britain and Ireland. By Captain Henry Kater, F.R.S.		254
Description of an improved Hygrometer. By Mr. Thomas Jones		258
Observations on the Changes which have taken place in some ancient Alloys of Copper. By John Davy, M.D. F.R.S.		258
Additional Proofs of Animal Heat being influenced by the Nerves. By Sir Everard Home, Bart. V.P.R.S.		259
The Croonian Lecture. On the Structure of a muscular Fibre from which is derived its Elongation and Contraction. By Sir Everard Home, Bart. V.P.R.S.		259
An Account of the Heat of July, 1825; together with some Remarks upon sensible Cold. By W. Heberden, M.D. F.R.S.		260
On the Transit Instrument of the Cambridge Observatory; being a Supplement to a former Paper. By Robert Woodhouse, Esq.		261
Account of a Series of Observations, made in the Summer of the Year 1825, for the purpose of determining the Difference of Meridians of the Royal Observatories of Greenwich and Paris; drawn up by J. F. W. Herschel, Esq. M.A. Sec. R.S.		261
Observations on the Poison of the Common Toad. By John Davy, M.D. F.R.S.		262
On the magnetizing Power of the more refrangible Solar Rays. By Mrs. M. Somerville		263
On the mutual Action of Sulphuric Acid and Naphthaline, and on a new Acid produced. By M. Faraday, F.R.S.		265
On the Nervous Circle which connects the voluntary Muscles with the Brain. By Charles Bell, Esq.		266
On the Constitution of the Atmosphere. By John Dalton, Esq. F.R.S. &c.		267
On the Coagulation by Heat of the fluid Blood in an aneurismal Tumour. By Sir Everard Home, Bart. V.P.R.S.		268
On the mathematical Theory of Suspension Bridges, with Tables for facilitating their Construction. By Davies Gilbert, Esq. V.P.R.S. &c.		269
On Magnetic Influence in the Solar Rays. By Samuel Hunter Christie, Esq, M.A. F.R.S.		270
On the mutual Action of Sulphuric Acid and Alcohol, with Observations on the Composition and Properties of the resulting Compound. By Mr. Henry Hennell		271
On a Method of expressing by Signs the Action of Machinery. By Charles Babbage, Esq. F.R.S.		273
On the Parallax of the Fixed Stars. By J. F. W. Herschel, Esq. M. A. Sec. R.S.		274
A Formula for expressing the Decrement of Human Life. By Thomas Young, M.D. For. Sec. R.S.		275
Account of an Experiment on the Elasticity of Ice. By Benjamin Bevan, Esq.		276
Results of the Application of Captain Kater's Floating Collimator to the Astronomical Circle at the Observatory of Trinity College, Dublin; and Remarks relative to those Results. By the Rev. J. Brinkley, D.D. F.R.S. P.R.I.A.		276
On the Means of facilitating the Observation of distant Stations in Geodsetical Operations. By Lieutenant Thomas Drummond		277
On the Production and Formation of Pearls. By Sir Everard Home, Bart. V.P.R.S.		278
On Burrowing and Boring Marine Animals. By Edward Osier, Esq.		278
An Account of some Experiments relative to the Passage of radiant Heat through glass Screens. By the Rev. Baden Powell, M.A. F.R.S.		280
The Bakerian Lecture. On the Relations of Electrical and Chemical Changes. By Sir Humphry Davy, Bart. P.R.S.		281
On the Discordances between the Sun's observed and computed Right Ascensions, as determined at the Blackman-street Observatory, in the Years 1821 and 1822; with Experiments to show that they did not originate in instrumental Derangement. Also a Description of the seven-feet Transit with which the Observations were procured, and upon which the Experiments were made. By James South, Esq. F.R.S.		285
On the Existence of a Limit to Vaporization. By M. Faraday, F.R.S.		286
On Electrical and Magnetic Rotations. By Charles Babbage, Esq. F.R.S. &c. &c.		287
Case of a Lady born blind, who received Sight at an advanced Age by the Formation of an artificial Pupil. By James Wardrop, Esq. F.R.S.E.		289
On the progressive Compression of Water by high Degrees of Force, with some Trials of its Effects on other Fluids. By J. Perkins.		289
On the Figure of the Earth. By George Biddell Airy, M.A.		290
Account of Experiments made with an Invariable Pendulum at the Royal Observatory at Greenwich, and at Port Bowen, on the eastern side of Prince Regent's Inlet. By Lieutenant Henry Foster, R.N. F.R.S.		290
Observations on the diurnal Variation of the Magnetic Needle, at the Whale Fish Islands, Davis's Strait. By Lieutenant Henry Foster, R.N. F.R.S.		293
Magnetical Observations at Port Bowen, &c. A.D. 1824-25, comprehending Observations on the diurnal Variation and diurnal Intensity of the Horizontal Needle; also on the Dip of the Magnetic Needle at Woolwich, and at different Stations, within the arctic Circle. By Captain W. E. Parry, R.N. F.R.S. and Lieutenant Henry Foster, R.N. F.R.S.		293
Abstract of the daily Variation of the Magnetic Needle No. 2. By Lieutenant Henry Foster, R.N. F.R.S.		293
Observations for determining the Dip of the Magnetic Needle. By Captain W. E. Parry, R.N. F.R.S. and Lieutenant Henry Foster, R.N. F.R.S.		293
Observations on the diurnal Changes in the Position of the Horizontal Needle, under a reduced directive Power, at Port Bowen, 1825. By Lieutenant Henry Foster, R.N. F.R.S.		293
A Comparison of the diurnal Changes of Intensity in the Dipping and Horizontal Needles, at Port Bowen. By Lieutenant Henry Foster, R.N. F.R.S.		293
Account of the Repetition of Mr. Christie's Experiments on the Magnetic Properties imparted to an Iron Plate by Rotation, at Port Bowen, in May and June, 1825. By Lieutenant Henry Foster, R.N. F.R.S.; together with Mr. Christie's Remarks thereon.		293
Observations to determine the Amount of Atmospherical Refraction at Port Bowen in the Years 1824-25. By Captain W. E. Parry, R.N. F.R.S.; Lieutenant Henry Foster, R.N. F.R.S.; and Lieutenant J. C. Ross, R.N. F.L.S.		296
1827.
Description of a Percussion Shell, to be fired horizontally from a common Gun. By Lieut-Colonel Miller		page 296
On the relative Powers of various metallic Substances as Conductors of Electricity. By Mr. William Snow Harris		298
On the Expediency of assigning Specific Names to all such Functions of simple Elements as represent definite physical Properties; with the Suggestion of a new Term in Mechanics; illustrated by an Investigation of the Machine moved by recoil, and also by some Observations on the Steam Engine. By Davies Gilbert, Esq. M.P. V.P.R.S. &c.		299
The Croonian Lecture for 1826. By Sir Everard Home, Bart. V.P.R.S.		301
On a newly discovered Genus of Serpentiform Fishes. By I. Harwood, M.D. F.L.S.		302
An Examination into the Structure of the Cells of the Human Lungs; with a view to ascertain the Office they perform in Respiration. By Sir Everard Home, Bart. V.P.R.S.		303
Remarks on a Correction of the Solar Tables required by Mr. South's Observations. By G. B. Airy, Esq. M.A.		305
On the mutual Action of the Particles of Magnetic Bodies, and on the Law of Variation of the Magnetic Forces generated at different Distances during Rotation. By S. H. Christie, Esq. M.A. F.R.S.		305
Corrections to the Reductions of Lieut. Foster's Observations on Atmospherical Refractions at Port Bowen: with Addenda to the Table of Magnetic Intensities at the same Place. By Lieut. Henry Foster, R.N. F.R.S		308
Corrections of an Error in a Paper published in the Philosophical Transactions, entitled, "On the Parallax of the Fixed Stars." By J. F. W. Herschel, Esq. F.R.S.		308
On a new Form of the Differential Thermometer, with some of its Applications. By William Ritchie, A.M.		309
On the Structure and Use of the Submaxillary Odoriferous Gland in the Genus Crocodilus. By Thomas Bell, Esq. F.L.S. G.S.		309
On the Permeability of Transparent Screens of extreme Tenuity by radiant Heat. By William Ritchie, A.M.		310
On the Derangements of certain Transit Instruments by the Effects of Temperature. By Robert Woodhouse, A.M. F.R.S. &c.		311
On some of the Compounds of Chromium. By Thomas Thomson, M.D. F.R.S. L.& E.		313
Rules and Principles for determining the dispersive Ratio of Glass; and for computing the Radii of Curvature for achromatic Object-Glasses, submitted to the Test of Experiment. By Peter Barlow, Esq. F.R.S.		316
On the Change in the Plumage of some Hen-Pheasants. By William Yarrell, Esq. F.L.S.		317
On the secondary Deflections produced in a Magnetized Needle by an Iron Shell, in consequence of an unequal Distribution of Magnetism in its two Branches. First noticed by Captain J. P. Wilson, of the Honourable East India Company's Ship Hythe. By Peter Barlow, Esq. F.R.S.		318
On the Difference of Meridians of the Royal Observatories of Greenwich and Paris. By Thomas Henderson, Esq.		319
Some Observations on the Effects of dividing the Nerves of the Lungs, and subjecting the latter to the Influence of voltaic Electricity. By A. P. W. Philip, M.D. F.R.S. L.& E.		320
On the Effects produced upon the Air Cells of the Lungs when the Pulmonary Circulation is too much increased. By Sir Everard Home, Bart. V.P.R.S.		321
Theory of the Diurnal Variation of the Magnetic Needle, illustrated by Experiments. By S. H. Christie, Esq. M.A. F.R.S.		321
On the ultimate Composition of simple alimentary Substances; with some preliminary Remarks on the Analysis of organized Bodies in general. By William Prout, M.D. F.R.S.		324
1828.
Experiments to ascertain the Ratio of the Magnetic Forces acting on a Needle suspended horizontally, in Paris and in London. By Captain Edward Sabine, Sec. R.S.		page 326
On the Resistance of Fluids to Bodies passing through them. By James Walker, Esq. F.R.S.E.		327
On the Corrections in the Elements of Delambre's Solar Tables required by the Observations made at the Royal Observatory, Greenwich. By George Biddell Airy, Esq. M.A.		328
Experiments to determine the Difference in the Length of the Seconds Pendulum in London and in Paris. By Captain Edward Sabine, Sec. R.S.		329
On the Measurement of High Temperatures. By James Prinsep, Esq.		331
On Captain Parry's and Lieutenant Foster's Experiments on the Velocity of Sound. By Dr. Gerard Moll		332
An Account of a Series of Experiments made with a view to the Construction of an achromatic Telescope with a fluid concave Lens, instead of the usual Lens of Flint Glass. By Peter Barlow, Esq. F.R.S. &c.		333
A Catalogue of Nebulae and clusters of Stars in the Southern Hemisphere, observed at Paramatta in New South Wales. By James Dunlop, Esq.		334
An Account of Trigonometrical Operations in the Years 1821, 1822, and 1823, for determining the Difference of Longitude between the Royal Observatories of Paris and Greenwich. By Captain Henry Kater, V.P.R.S.		335
On the Phenomena of Volcanoes. By Sir Humphry Davy, Bart. F.R.S.		338
Abstract of a Meteorological Journal kept at Benares during the Years 1824, 1825, and 1826. By James Prinsep, Esq.		340
A Description of a vertical floating Collimator; and an Account of its application to Astronomical Observations with a Circle and with a zenith Telescope. By Captain Henry Kater, V.P.R.S.		340
On the Height of the Aurora Borealis above the surface of the Earth; particularly one seen on the 29th of March, 1826. By John Daiton, F.R.S.		342
A Comparison of the Changes of Magnetic Intensity throughout the Day in the Dipping and Horizontal Needles, at Treurenburgh Bay in Spitsbergen. By Captain Henry Foster, R.N. F.R.S.		344
Experiments relative to the Effect of Temperature on the refractive Index and dispersive Power of Expansible Fluids, and on the Influence of these Changes in a Telescope with a fluid Lens. By Peter Barlow, Esq. F.R.S. &c.		345
On some Circumstances relating to the Economy of Bees. By Thomas Andrew Knight, Esq. F.R.S.		346
On the Laws of the Deviation of Magnetized Needles towards Iron. By Samuel Hunter Christie, Esq. M.A. F.R.S. &c.		347
Description of a Sounding Board in Attercliffe Church, invented by the Rev. John Blackburn		349
On the mutual Action of Sulphuric Acid and Alcohol, and on the Nature of the Process by which Ether is formed. By Henry Hennell, Esq.		350
Experiments and Observations on Electric Conduction. By William Ritchie, A.M. F.R.S.		350
On Magnetic Influence in the Solar Rays. By Samuel Hunter Christie, Esq. M.A. F.R.S. &c.		351
1829.
The Bakerian Lecture. On a Method of rendering Platina malleable. By William Hyde Wollaston, M.D. F.R.S. &c.		352
A Description of a Microscopic Doublet. By William Hyde Wollaston, M.D. F.R.S. &c.		353
An Account of some Experiments on the Torpedo. By Sir Humphry Davy, Bart. F.R.S.		354
On a Method of comparing the Light of the Sun with that of the Fixed Stars. By William Hyde Wollaston, M.D. F.R.S.		355
On the Water of the Mediterranean. By William Hyde Wollaston, M.D. F.R.S.		355
An Account of the preliminary Experiments and ultimate Construction of a Refracting Telescope of 7·8 inches aperture, with a fluid concave Lens. By Peter Barlow, Esq. F.R.S. &c.		356
On the Dip of the Magnetic Needle in London, in August, 1828. By Captain Edward Sabine, Sec. R.S.		357
Remarks on the tendency to Calculous Diseases; with Observations on the Nature of urinary Concretions, and an Analysis of a large Part of the Collection belonging to the Norfolk and Norwich Hospital. By John Yelloly, M.D. F.R.S. &c.		359
Experiments to determine the Difference in the Number of Vibrations made by an Invariable Pendulum in the Royal Observatory at Greenwich, and in the House in London in which Captain Kater's Experiments were made. By Captain Edward Sabine, Sec. R.S.		360
On a definite Arrangement, and Order of the Appearance and Progress, of the Aurora Borealis; and on its Height above the Surface of the Earth. By the Rev. James Farquharson		360
Observations on the Functions of the Intestinal Canal and Liver of the human Foetus. By Robert Lee, M.D.		361
Experiments on the Modulus of Torsion. By Benjamin Bevan, Esq.		362
On a Differential Barometer. By the late William Hyde Wollaston, M.D. F.R.S.		363
Some Observations relating to the Function of Digestion. By A. P. W. Philip, M.D. F.R.S. L. & E.		364
Experiments on the Friction and Abrasion of the Surfaces of Solids. By George Rennie, Esq. F.R.S.		364
An Attempt to rectify the Inaccuracy of some Logarithmic Formulae. By John Thomas Graves, Esq.		365
On the Reflection and Decomposition of Light at the separating Surfaces of Media of the same and of different refractive Powers. By David Brewster, LL.D. F.R.S. L. & E.		366
On the Reduction to a Vacuum of the Vibrations of an Invariable Pendulum. By Captain Edward Sabine, Sec. R.S.		368
Consideration of the Objections raised against the geometrical Representation of the Square Roots of Negative Quantities. By the Rev. John Warren, M.A.		371
Anatomical Description of the Foot of a Chinese Female. By Bransby Blake Cooper, Esq.		373
Some Observations on the Functions of the Nervous System, and the relation which they bear to the other vital Functions. By Alexander Philip Wilson Philip, M.D. F.R.S. L. & E.		373
On the Respiration of Birds. By William Allen and William Hasledine Pepys, Esqrs. Fellows of the Royal Society.		375
On the spontaneous Purification of Thames Water. By John Bostock, M.D. F.R.S. &c.		376
On the Composition of Chloride of Barium. By Edward Turner, M.D.		377
On a new Series of periodical Colours produced by the grooved Surfaces of Metallic and Transparent Bodies. By David Brewster, LL.D. F.R.S. L.& E.		378
On the Nerves of the Face; being a second Paper on that Subject. By Charles Bell, Esq. F.R.S.		380
On the Reduction to a Vacuum of Captain Kater's convertible Pendulum. By Captain Edward Sabine, Sec. R.S.		381
On the geometrical Representation of the Powers of Quantities, whose Indices involve the Square Roots of negative Quantities. By the Rev. John Warren, M.A.		382
An experimental Examination of the Electric and Chemical Theories of Galvanism. By William Ritchie, A.M. F.R.S.		382
1830.
The Bakerian Lecture. On the Manufacture of Glass for Optical Purposes. By Michael Faraday, Esq. F.R.S. &c.		page 383
Account of Levellings carried across the Isthmus of Panama, to ascertain the relative Height of the Pacific Ocean at Panama, and of the Atlantic at the mouth of the River Chagres; accompanied by Geographical and Topographical Notices of the Isthmus. By John Augustus Lloyd, Esq.		385
On the Law of the partial Polarization of Light by Reflexion. By David Brewster, LL.D. F.R.S. L. & E.		387
A Report on the Stomach of the Zariffa. By Sir Everard Home, Bart. V.P.R.S.		389
On the Production of regular double Refraction in the Molecules of Bodies by simple Pressure; with Observations on the Origin of the doubly refracting Structure. By David Brewster, LL.D. F.R.S. L.& E.		389
Experiments on the Influence of the Aurora Borealis on the Magnetic Needle. By the Rev. James Farquharson, F.R.S.		391
Remarks on several Icebergs which have been met with in unusually low Latitudes in the Southern Hemisphere. By Captain James Horsburgh, F.R.S.		392
On the progressive Improvements made in the Efficiency of Steam Engines in Cornwall; with Investigations of the Methods best adapted for imparting great angular Velocities. By Davies Gilbert, Esq. P.R.S.		393
On the Laws of the Polarization of Light by Refraction. By David Brewster, LL.D. F.R.S. L.& E.		394
On the Action of the Second Surfaces of transparent Plates upon Light. By David Brewster, LL.D. F.R.S. L.& E.		395
Observations made with the Invariable Pendulum (No. 4. Jones), at the Royal Observatory, Cape of Good Hope, for the purpose of determining the Compression of the Earth. By the Rev. Fearon Fallows, F.R.S.		396
Statement of the principal Circumstances respecting the united Siamese Twins now exhibiting in London. By George Buckley Bolton, Esq.		397
On some Properties in Achromatic Object-glasses applicable to the Improvement of the Microscope. By Joseph Jackson Lister, Esq.		399
On the Pendulum. By J. W. Lubbock, Esq. F.R.S.		401
On the Theoretical Investigation of the Velocity of Sound, as corrected from M. Dulong's recent Experiments, compared with the Results of the Observations of Dr. Moll and Dr. Van Beek. By Dr. Simons.		401
On the Elasticity of Threads of Glass, with some of the most useful Applications of this property to Torsion Balances. By William Ritchie, A.M. F.R.S.		402
Memoir on the occurrence of Iodine and Bromine in certain Mineral Waters of South Britain. By Charles Daubeny, M.D. F.R.S.		402
Experiments to determine the Difference in the Number of Vibrations made by an Invariable Pendulum in the Royal Observatories of Greenwich and Altona. By Captain Edward Sabine, Sec. R.S.		403
Experiments to ascertain the Correction for Variations of Temperature, within the limits of the natural Temperature of the Climate of the South of England, of the Invariable Pendulum recently employed by British Observers. By Captain Edward Sabine, Sec. R.S.		404
On a new Register-Pyrometer, for measuring the Expansions of Solids, and determining the higher Degrees of Temperature upon the common thermometric Scale. By J. Frederic Daniell, Esq. F.R.S.		404
On the Phenomena and Laws of Elliptic Polarization, as exhibited in the Action of Metals upon Light. By David Brewster, LL.D. F.R.S. L. & E.		406
Researches in Physical Astronomy. By John William Lubbock, Esq. F.R.S.		408
On the Error in Standards of Linear Measure, arising from the thickness of the Bar on which they are traced. By Captain Henry Kater, V.P. and Treas. R.S.		408
On the Illumination of Light-houses. By Lieutenant Thomas Drummond		410
On the Electro-magnetic Properties of metalliferous Veins in the Mines of Cornwall. By Robert Were Fox		411
Sequel to a Paper on the tendency to Calculous Diseases, and on the Concretions to which such Diseases give rise. By John Yelloly, M.D. F.R.S. &c.		412