GENERAL INDEX. 



719 



Cyclopteris sp., 305. 

 Cyclostigma affine, 801. 



Dalstou, section from SolwayMoss to, 

 296. 



Davis, J. W., Esq., on the fish-remains 

 of the bone-bed at Aust, near Bristol, 

 with the description of some new 

 genera and species, 414. 



, on Anodontacanthus, a new 



genus of fossil fishes from the coal- 

 measures, with descriptions of three 

 new species, 427. 



Dawson, Dr. G. M., on the superficial 

 geology of British Columbia and 

 adjacent regions, 272. 



Dawson, Dr. J. W., award of the 

 Lyell Medal to, Proc. 30. 



, on new Erian (Devonian) plants, 



299. 



Denbighshire grit, constitution of, 9. 



, Dr. Hicks on some plant-re- 

 mains discovered at the base of the, 

 Corwen, N. Wales, 482. 



Dendroid Graptolites, Mr. C. Lap- 

 worth on the, in the Llandovery 

 rocks of Mid Wales, 171. 



Depolarization, areas of, from strain 

 within perlitic bodies in obsidian 

 tuff, 396. 



Devil's Bridge, section from Aberyst- 

 wyth to the, 143; fossils from, 

 147 ; great inversion of rocks at. 

 146. 



Devitrified rocks, Mr. F. Rutley on, 

 from Beddgelert and Snowdon, 

 403. 



Devonian grits and sandstones, 9. 



plants, Principal Dawson on new, 



299. 



Diamond-fields of South Africa, Mr. 



Dunn on the, 609. 

 Diastopora, Mr. F. D. Longe on some 



specimens of, from the Wenlock 



limestone, 239. 

 Diastopora cricopora, 387. 



oolitica, 386. 



stomatoporides, 384. 



ventricosa, 385. 



Diastoporidas, Mr. G. R. Vine on the, 



from the Lias and Oolite, 381. 

 Dicranophyllum australicum, 306. 

 Diciyonema corrugatellum, 172. 



delicatulum, 172. 



venustum, 171. 



Dictyophyton, 303. 



Dolomitic conglomerate near Clifton, 



76. 



Doratodon carcharidens, 671. 

 Dorset., Mr. J. Buckman on some Am- 



monites from the Inferior Oolite of 

 Somerset and, 57. 

 Dorset, Mr. S. S. Buckman on some 

 Ammonites from the Inferior Oolite 

 of, 588. 



Dovey valley, 162; section through, 

 163. 



Drift-zones, Mr. D. Mackintosh on the 



existence of, 351. 

 Drigg, interglacial deposit at, 34. 

 Dulas Bay, 220. 



Duncan, Prof. P. Martin, presentation 

 of the Wollaston Medal to, Proc. 28. 



, on the coralliferous series of 



Sind and its connexion with the 

 last upheaval of the Himalayas, 

 190. 



Dunn, E. J., Esq., on the diamond- 

 fields of South Africa, 609. 



Durdham Down, conglomerate of, 67 ; 

 section at the edge of, 70; Theco- 

 dontosaurus-bed of, 73. 



Durness and Assynt, Dr. C. Callaway 

 on the limestone of, 239. 



Durness area, map of the, 240. 



Dymoke, Keuper sandstone from, 15. 



Easton, section through, 296. 



Eccles, J., Esq., on the mode of occur- 

 rence of some volcanic rocks of 

 Montana, U. S. A., 399. 



Egton, constitution of moor grits 

 from, 16. 



Equisetides Wrighfiana, 301. 



Emys Neumayri, 698. 



Eppelsheim, 206. 



Erian (Devonian) plants, Principal 

 Dawson on new, 299. 



Erratic stones in the Moel-Tryfan de- 

 posit, 353. 



Eruptive rocks of Skoiner Island, Mr. 

 F. Rutley on, 409. 



Etheridge, R., Esq. (President), Ad- 

 dress on presenting the Wollaston 

 Medal to Prof. P. Martin Duncan, 

 Proc. 28 ; Address on presenting 

 the Murchison Medal to Prof. 

 Archibald Geikie, 29 ; Address on 

 handing the Lyell Medal to W. W. 

 Smyth, Esq., for transmission to 

 Dr. J. W. Dawson, 30 ; Address on 

 handing the Bigsby Medal to Prof. 

 Morris for transmission to Dr. 

 Charles Barrois, 32 ; Address on 

 handing the Wollaston Donation 

 Fund to Prof. J. W. Judd for trans- 

 mission to Dr. R. H. Traquair, 33 ; 

 Address on presenting the balance 

 of the Murchison Donation Fund to 

 Frank Rutley, Esq., 34; Address 



