Page:Proceedings of the Royal Society of London Vol 3.djvu/11

CONTENTS.

VOL. III.

---

1830.

On the Nature of Negative and Imaginary Quantities. By Davies Gilbert, Esq. President of the Royal Society page	4
On a simple Electro-chemical Method of ascertaining the presence of different Metals ; applied to detect minute quantities of Metallic Poisons. By Edmund Davy, Esq. F.R.S. M.R.I. A. and Professor of Chemistry to the Royal Dublin Society	5
On the performance of Fluid Refracting Telescopes, and on the applicability of this principle of construction to very large instruments. By Peter Barlow, Esq. F.R.S. Corresponding Member of the Institute of France, of the Imperial Academy of St. Petersburg, &c	13
Researches in Physical Astronomy. By John William Lubbock, Esq. V.P. and Treasurer of the Royal Society	16
On the Hour Lines of the Ancients. By W. A. Cadell, Esq. F.R.S.	18
1831.
On the Equilibrium of Fluids ; and the Figure of a Homogeneous Planet in a fluid state. By James Ivory, Esq. M.A. F.R.S	20
On the probable Electric Origin of all the Phenomena of Terrestrial Magnetism ; with an illustrative experiment. By Peter Barlow, Esq. F.R.S. Corr. Mem. Inst. France and of the Imp. Acad. St. Petersburg	23
On the Lunar Theory	25
On a New Combination of Chlorine and Nitrous Gas. By Edmund Davy, Esq. F.R.S. M.R.I.A Professor of Chemistry to the Royal Dublin Society	27
On the Chemical Action of Atmospheric Electricity. By Alexander Barry, Esq. F.L.S .	29
An Account of Operations carried on for ascertaining the Difference of Level between the River Thames at London Bridge and the Sea