Vol. 60.] 



GENERAL INDEX. 



409 



Perlitic structure in Pontesford-Hill 

 nodular rhyolites, 458 & pi. xl. 



Perowskite in Llyn-Padarn dyke- 

 rocks, 380 & pi. xxxii. 



Petrography of Loch-Lotnond rocks, 

 15-22 fig. & pis. ii-v ; of rocks 

 fr. district surrounding the Dar- 

 danelles, 276-77 ; of igneous rocks 

 assoc. w. Carb. Liinest. of Bristol 

 district, 151-55 & pi. xvii. 



Phlegraean Fields (Italy), history of 

 vole, action in, 296-315 & pis. xxvi- 

 xxviii (maps & sects.). 



Pholidophorus at base of Black Shales 

 (Rheetic), 214. 



Phonolite of Wolf Rock, Eocene (?) 

 age of, 117. 



Phosphatic nodules in Barnwell 

 Gault, 360-61. 



Photographs, geological (Brit. Assoc), 

 cviii. 



Physical geography of Rhastic Period, 

 179-87. 



Piano di Quarto (Italy), 307, 309. 



Piano di Teano & di Torre Poerio 

 (Italy), 30-9. 



Pidgeox Fund, see Daniel-Pidgeon 

 Fund. 



Pieman Valley (Tasmania), glacial 

 deposits in, 51, 52. 



' Pillowy ' basalts of Spring Cove, 

 159, 162 et seqq. figs. 



Pink felspathic rock (Moine Gneiss 

 Series), 416 et seqq. 



Pink-edged gneisses (Moine Gneiss 

 Series), 407-408. 412 et seqq. 



Piperno & pipernoid tuff, phase of 

 the, 301-302. 



Placers (auriferous) of Cariboo, genesis 

 of, 390 et seqq. 



Plant-remains in flint, vi ; plant- 

 remains (fr. peat at Wolvercote), 

 123-25 : (Oligoc.) fr. Keshan, 

 288 



Platt, S. S., 399. 



Platycnemic tibia found in Gough's 

 Cavern, 343-44 figs., 347. 



Pleistocene glaciation in Tasmania, 

 38 et seqq. ; range of same, 49-52 

 w. map ; Pleistoc. mosses in Wol- 

 vercote peat, 124-25 ; Pleistoc. of 

 district surrounding the Darda- 

 nelles, 265-72 figs. ; foss. fr. same, 

 278-80; Pleistoc. submarine erup- 

 tions in the Phlegreean Fields, 298 

 et seqq. 



Plesiosauras cf. bibractensis fr. West- 

 bury-on-Severn, 359. 



Plesiosaurus costatus, 208. 



Pleuromya Crowcombeia, 188; zone 

 of, 189. 



Pleurophorus elongatus, 205-207 fig. 

 Plicatula cloacina, sp. nov., 202 fig. 



& pi. xviii. 

 Pliocene shelf in W. Cornwall, 116 ; 



Plioc. of district surrounding the 



Dardanelles, 261-65 figs. ; foss. fr. 



same, 281-84 & pi. xxiv; Plioc. 



history of the Phlegraean area, 298. 

 Plummeu, W. E. [on Bidston record of 



Derby earthquake], 222-23 ; [on 



do. of Caernarvon earthquake], 235. 

 Pocock, R. I., 399. 

 Poggioreale (Italy), yellow tuff-vol- 

 cano, 306. 

 Polishing of stones by animal agencv, 



339. 

 Pollard, W., quoted, 3 ; chem. anal. 



by, 23, 24. 

 Pontesford Hill (Shropshire), igneous 



rocks of, 450-S6 figs. & pis. xxxviii- 



xliii (map, seecs., & microscop. 



sects.). 

 Pontian, near Keshan, 261, 272; fess. 



fr. Dardanelles area, 281 & pi. xxiv ; 



see also Miocene. 

 Ponto-Caspian Lake, history of the, 



261 et seqq., 272. 

 Porphyrite of Buscoe Sike, 77 ; of 



Lingmell, 81; see also Hornbleude- 



porphyrite, 4~c. 

 Posillipo (Italy), yellow tuff-volcano, 



306. 

 Post-Pliocene foss. fr. Dardanelles 



area, 278-79. 

 Potamina Dere (Turkey), Sarmatic 



freshwater shells from, 283. 

 Prah Sands (Cornwall), palaeolithic (?) 



floor at, 106-12 figs. 

 Pre-Cambrian ' greenstone ' of Llyn 



Paclarn, 375-77. 

 Pre-Eocene of the district surround- 

 ing the Dardanelles, 243-44. 

 Preller, C. S. Du Riciie, the Age of 



the Principal Lake-Basins between 



the Jura & the Alps, 65-66, 68-69 ; 



Phenomena bearing upon the Age 



of the Lake of Geneva, 316-18. 

 Prestwich medallist, xxxii. 

 Pringle, J., 1, 3. 

 Prior, G. T., elected Auditor, v. 

 Progressive metamorphism in the 



Loch-Lomond district, 24-25. 

 Prosodacna cf. stenoplcura, 281 & 



pi. xxiv. 

 Psara I. (Levant), absence (?) of vole. 



rocks in, 250. 

 Pteromya Crowcombeia distinct fr. 



Pleuromya C, 188. 

 Ptychodontinae, new sub-family, 135. 

 Ptychodus decurrens, jaws of, 133-36 



fig. & pi. xv. 



