PART I.—ORIGINAL COMMUNICATIONS.
Adams , F. O., Esq. On the Coal-mines at Kaianoma, in the Island of Yezo. [Abstract.]
................................................................................................................................................................................................................................................................................................................................................................................................
264
Baily , W. H., Esq. Notes on Graptolites and allied Fossils occurring in Ireland
................................................................................................................................................................................................................................................................................................................................................................................................
158
——— . Notice of Plant-remains from Beds interstratified with the Basalt in the County of Antrim. (With 2 Plates.)
................................................................................................................................................................................................................................................................................................................................................................................................
162, 357
Bauerman , H., Esq. Note on a Geological Reconnaissance made in Arabia Petræa in the Spring of 1868. (With 1 Plate.)
................................................................................................................................................................................................................................................................................................................................................................................................
17
Bauerman , H. Esq., and Dr. C. Le Neve Foster . On the Occurrence of Celestine in the Nummulitic Limestone of Egypt
................................................................................................................................................................................................................................................................................................................................................................................................
40
Beor , E. J., Esq. On the Lignite-mines of Podernuovo, near Volterra. [Abstract.]
................................................................................................................................................................................................................................................................................................................................................................................................
260
Blanford , W. T., Esq. On the Geology of a portion of Abyssinia
................................................................................................................................................................................................................................................................................................................................................................................................
401
Bristow , H. W., Esq., and W. Whitaker , Esq. On the Formation of the Chesil Bank. [Title only.]
................................................................................................................................................................................................................................................................................................................................................................................................
305
Brodie , Rev. P. B. On the Occurrence of Remains of Eurypterus and Pterygotus in the Upper Silurian Rocks in Herefordshire
................................................................................................................................................................................................................................................................................................................................................................................................
235
Browne , G. M., Esq. On Floods in the Island of Bequia. [Abstract.]
................................................................................................................................................................................................................................................................................................................................................................................................
12
Carruthers , W., Esq. On the Structure and Affinities of Sigillaria and allied Genera. (With 1 Plate.)
................................................................................................................................................................................................................................................................................................................................................................................................
248
Clark , G. T., Esq. Remarks on the Basalt Dykes of the Mainland of India, opposite to the Islands of Bombay and Salsette
................................................................................................................................................................................................................................................................................................................................................................................................
163
Coquand , Prof. H. The Cretaceous Strata of England and the North of France compared with those of the West, South-west, and South of France, and the North of Africa
................................................................................................................................................................................................................................................................................................................................................................................................
237
Davidson , T., Esq. On Terebratula diphya , &c.
................................................................................................................................................................................................................................................................................................................................................................................................
306
Dawkins, W. Boyd , Esq. On the Distribution of the British Postglacial Mammals
................................................................................................................................................................................................................................................................................................................................................................................................
192
Dawson , Prof. J. W. On the Graphite of the Laurentian of Canada. [Abstract.]
................................................................................................................................................................................................................................................................................................................................................................................................
406
Duncan , Dr. P. Martin . Note on the Echinodermata, Bivalve Mollusca, and some other Fossil Species from the Cretaceous Rocks of Sinai
................................................................................................................................................................................................................................................................................................................................................................................................
44