GENERAL INDEX. 



Elvanite dykes from the Eskdale 

 granite, 580. 



El-vans, Cornish, 334; analyses of, 

 335. 



Ely, Upper Kimmeridge at, 201. 



England, Eev. J. F. Blake on the 

 Kimmeridge day of, 196. 



Ennerdale and Buttermere, syenite 

 and syenitic granite of, 583. 



Eocene, Nummulitic, of the Mokattam 

 cliffs near Cairo, Prof. Owen on the 

 fossil evidences of a Sirenian mam- 

 mal from the, 100. 



Equus caballus in Creswell-Crag care, 

 690. 



Equus fossilis, teeth of, from Port- 

 land, 32. 



Erosion, glacial, in the Eden valley 

 and Western Yorkshire, 71. 



Eruptive rocks, pregranitic, of Corn- 

 wall, 325. 



Eskdale, ice-scratches in, 154. 



Eskdale and Shap granites, litholo- 

 gical character of, 590 ; microscopic 

 structure of, 593. 



Eskdale granite, 570, 577 ; quartz fel- 

 site dykes from the, 580. 



Etheridge, R., Esq., Jun., description 

 of a new species of the genus Hemi- 

 patagus, Desor, from the Tertiary 

 rocks of Victoria, Australia, with 

 notes on some previously described 

 species from South Australia, 444. 



European area, Mr. H. Hicks on the 

 physical conditions under which 

 the Cambrian and Lower Silurian 

 rocks were probably deposited over 

 the, 552. 



Eusuchia, 427. 



Evans, John, Esq. (President), Ad- 

 dress on presenting the Wollaston 

 Gold Medal to Prof. L. G. de Ko- 

 ninck, xxxiii ; Address on present- 

 ing the balance of the Wollaston 

 Donation Fund to L. C. Miall, 

 Esq., xxxiv ; Address on handing 

 to David Forbes, Esq., the Murchi- 

 son Medal for transmission to W. 

 J. Henwood, Esq., xxxv ; Address 

 on presenting the balance of the 

 Murchison Geological Fund to Prof. 

 H. G. Seeley, xxxvi; Anniversay 

 Address, February 19th, 1875 : 

 Obituary Notices of Deceased Fel- 

 lows : — Prof. John Phillips, xxxvii ; 

 M. J. B. A. L. L. Elie de Beaumont, 

 For. Memb., xliii ; M. J. B. J. 

 d'Omalius d'Halloy, For. Memb., 

 xlv ; Dr. F. Stoliczka, xlvii ; Dr. R. 

 E. Grant, xlix ; the Rev. Charles 

 lii : Dr. Neil Arnott, liii ; 



Dr. H. J. Burkart, liii ; M. Sylvain 

 Van de Weyer, lv ; Sir John Ren- 

 nie, lv ; Mr. J. W. Pike, lvi ; and 

 Prof. W. Macdonald, lvii ; Address 

 on the present position of the So- 

 ciety, and on the geological evidence 

 as to the antiquity of the human 

 race, lvii. 



Evolution of the Crocodilia, Prof. 

 Huxley on the, 423. 



Ex, Mr. G. W. Ormerod on the Mur- 

 chisonite beds of the valley of the, 

 and an attempt to classify the beds 

 of the Trias thereby, 346. 



Exminster, section through, 352. 



Eycott Hill, microscopic structure of 

 the porphyritic Dolerite of, 406. 



Fairy Crag, quartz felsite of, 586. 



Fault, Mr. J. M. Wilson on the pro- 

 bable existence of a considerable, in 

 the Lias near Rugby, 355. 



Felsi-dolerites, 417. 



Felspars, Mr. F. Rutley on some pe- 

 culiarities in the microscopic struc- 

 ture of, 479. 



Felstone of Aran Mowddwy, micro- 

 scopic structure of, 400 ; of Aran 

 Benlynn, microscopic structxire of, 

 401 ; of Y Foel-ddu, microscopic 

 structure of, 401 ; of Efridd Traws- 

 coed, microscopic structure of, 401 ; 

 of Snowdon, microscopic structure 

 of, 401. 



Felstones, mean analysis of. 414. 



Fenny Compton, Middle Lias near, 

 509. 



Filey Bay, Upper Kimmeridge in, 

 203. 



Fisher, Rev. O., remarks upon Mr. 

 Mallet's theory of volcanic energy, 

 469. 



Forest, fossil, Mr. H. C. Sorby on the 

 remains of a, in the Coal-measures 

 at Wadsley, near Sheffield, 458. 



Fossils, table of genera of, showing the 

 range of, from the Lougmynd to 

 the Bala group in Wales, 190. 



Fossils from the Arenig group, St. 

 David's, 176. 



from the Gault and Upper 



Greensand, 274. 



■ from the Jurassic deposits of 



North-west Lincolnshire, 123. 



from the Kimmeridge Clay, 



217. 



from the Llandeilo group, Pem- 

 brokeshire, 179. 



from the Portland mammali- 



ferous drift, 32; from the raised 

 beach at Portland, 33, 52. 



