GENERAL INDEX. 



StagonolepisRobertsoni, Prof. Huxley 

 on, and on the evolution of the Cro- 

 codilia, 423. 

 Steel Fell, microscopic structure of 

 ash of, 409. 



Stoke Common, section through, 

 352. 



Stone-cavities, leucite crystals contain- 

 ing, 395. 



Strata, table showing the order of suc- 

 cession of, in Wales and Shrop- 

 shire, 192. 



Striae, glacial, in the Eden Valley and 

 Western Yorkshire, 59 ; in the 

 southern part of the Lake-district, 

 152. 



Subulites ventricosus, 549. 



Suez, 23, 27; section from, to Jebel 

 Ataghtagheer, 11. 



Sugton Pit, section at, near Southwell, 

 39. 



Suth, El, section through, 12. 



Swanage, Prof. Seeley on an Ornitho- 

 saurian (Doratorhynchus validus) 

 from the Purbeck limestone of 

 Langton, near, 465. 



Swindon, Lower Kimrneridge at, 211. 



Sydney Cove, Elvan from Pra Sands 

 near, 336. 



Syenite and syenitic granite of Enners- 

 dale and Buttermere, 583. 



Tabor, Mount, section through, 12. 

 Talehir plant-bearing group, 520. 

 Tancredia ferrea, 127. 



liassica, 127. 



Tarns, origin of the basins of, 161. 

 Tasmania, Prof. Duncan on some 

 fossil Corals from the Tertiary de- 

 posits of, 677. 

 Tate, Ralph, Esq., on the Lias about 



Eadstock, 493. 

 Teignmouth, section through, 352. 

 Tetragraptus Halli, 651. 



Hicksii, 657. 



quadribrachiatus, 649. 



serra, 650. 



Theca caereesiensis, 189. 



HarJcnessi, 189. 



Throstle Hall, sections in the Settle- 



and Carlisle railway-cutting at, 88, 



89. 

 Tih plateau, 24, 25 ; section of the, 11. 

 Timsbury, Lower Lias near, 498. 

 Topsham, section through, 352. 

 Tor, 3. 

 Torre dell' Annnnziata, microscopic 



structure of Leucitic basalt from, 



393. 

 Torre del Greco, Leucitic basalt from 



near, microscopic structure of, 393. 



Trachyte from the Solfatara, micro- 

 scopic structure of, 392. 

 Trachytes, mean analysis of, 414. 

 Trap of Latterbarrow, microscopic 



structure of, 408. 

 Tregoning Hill, Breage, elvan from, 



336. 

 Trelill, analysis of greenstone from, 



326, 327. 

 Trelissick Creek, elvan from, 327. 

 Trias, Mr. G-. W. Ormerod on the 



classification of the beds of the, 



346. 

 Trichinopoly, plant-bearing series of, 



523. 

 Trigonograptus ensiformis, 659. 



truncatus, 660. 



Trinucleus Etheridgii, 182. 



Ramsay i, 183. 



Trochocyathus conulus, 303. 

 Trochus excavatus, 226. 



retrorsus, 226. 



solitarius, 506. 



Tollotianus, 292. 



Tufa, calcareous, of Portland, 41. 

 Tylor, A., Esq., on the heat evolved 



by the friction of ice, lxxxiii. 

 Tyning, Middle Lias near, 501. 



Ursus, remains of, from Creswell 



Crags, 683. 

 Ursus ferox, odontogram of upper 



molars of, from Windy Knoll, 252. 

 Ursus priscus, upper canine of, from 



Windy Knoll, 251. 

 spelceus, upper canine of, from 



Wookey Hole, 251. 



Vermicularia contorta, 231. 



Vertebrate fossils from the Kim- 

 meridge clay, Prof. Seeley on, 234. 



Victoria, Australia, Mr. P. Etheridge, 

 Jun., on a new species of Hemipa- 

 tagus from, 444. 



View of Chesilton Cliff, 47. 



View of Creswell Crags, looking east, 

 679; of fissure in Creswell Crags, 

 680. 



View of Pembina mountain, 605 ; of 

 the Missouri coteau, 615. 



Volcanic energy, Rev. O. Fisher's re- 

 marks upon Mr. Mallet's theory of, 

 469. 



, Mr. R. Mallet's observations on 



the Rev. O. Fisher's remarks on 

 Mr. Mallet's theory of, 511. 



Volcanic rocks, Mr. J. C. Ward on 

 the comparative microscopic rock- 

 structure of some ancient and mo- 

 dern, 388. 



= series, phosphoric acid in, 599. 



