GENBEAX IXDEX. 



749 



Platanites hcbridicus, 289. 

 Plesiocetus, 12. 



Pliocene of India, jaw of Hyotkerium 



from the, 19. 

 Pliocene type of Equus from Nubia, 



molar of a, 161. 

 Pluvial Period, 369. 

 Porrentruy, 239, 240. 

 Pocos de Caldas. occurrences of foyaite 



at the, 457, 460. 

 Podocarpus Campbelli, 289. 

 sp., 289. 



Poikilopleuron pusillus (Owen), 

 221. 



Point Terrible, Sark, 326 ; section 

 showing hornblende-schist over- 

 lying gneiss at, 327. 



Polyzoa, Mr. E. A. Walford on some, 

 from the Lias, 632. 



. See also Bryozoa. 



Pontnewydd Cave, 103, 107 ; fossils 

 from, 107. 



, stone implements from, 



116. 



Porcellanite, 318. 



from the Herefordshire Beacon, 



Malvern Bange, 499. 



Porella concinna, 63. 



Porina grandipora, 59. 



Porphvrites, quartz-, fragments of, in 

 the Essex Drift, 353. 



Porphyry, boulder of grey, at base of 

 cliff, south of Saunton Down, 665. 



Port du Moulin, Sark, hornblende- 

 schists of, 324. 



Port es Saies, Sark, 325. 



Portlandian, 264; of the Bernese 

 Jura, 241 ; of the Southern Jura, 

 246. 



Portlemouth Ferry, mica-schist of, 

 730. 



Postglacial lapse of time, 404. 

 Pouillerel, 242. 



Pouldu, contorted banded gneiss at 

 the embouchure of the, 308. 



Pressure, evidence of, in the schists 

 of the Malvern Hills, 527. 



Prestwich, Prof. J., Considerations on 

 the Date, Duration, and Conditions 

 of the Glacial Period with reference 

 to the Antiquity of Man, 393. 



Psammechinus Wilsoni, 413. 



Pterocerian, 261, 263, 264: of the 

 Bernese Jura, 239 ; fossils of the, 

 239: of the -Southern Jura, 245; 

 fossils of the, 246. 



Ptychodus, Agassiz, dentition and 

 affinities of the Selachian genus, 

 121. 



Ptychodus decurrens, 123-130. 

 paucisulcatus, 127. 



Ptychodus polygyrus, 127. 

 Purbeckians, 265; of the Bernese 



Jura, 241 ; of the Southern Jura, 



247. 



Quartz-porphyrites, fragments of, in 



tiie Essex Drift, 353. 

 Quartz-rock, fragments of, in the 



Essex Drift, 359. 

 Quartz-syenite, gneissic, from North 



Hill, Malvern Bange, 490. 

 Quartz-tourmaline, fragments of, in 



the Essex Drift, 353. 

 Quartz-trachyte, fragment of, in the 



Essex Drift, 354. 

 Quartzite boulders and grooves in 



the Roger Mine at Dukinfield, 



599. 



(itacolumite) of the Corrego do 



Quartel, 461 ; of the Bio das Antas, 

 471. 



schist, micaceous, from Bagged- 

 stone Hill, Malvern Bange, 505. 



Quartzites, fragments of, in the Essex 

 Drift, 359. 



Quercites grcenlandicus, 291. 



Quiniperle, older rocks of, 304-314. 



Badcliffe, Mr. James, on Grooves and 



Quartzite Boulders in the Boger 



Mine at Dukinfield, 599. 

 Baggedstone Hill, Malvern Bange, 



534; felsite in, 527; rocks from, 



504, 505 ; section through, 488. 

 Bainf'all, of the Glacial period, 403 ; 



influence of, on Glaciers, 404. 

 Baisin, Miss Catherine A., on the 



Metamorphic Bocks of SouthDevon, 



715. 



Bavenswood, brook-sections in the 



Bagshots, south of, 382, 383. 

 Beach, Chalk-marl and Totternhoe 



Stone at. 552. 

 Bed Chalk of Hunstanton, 552, 592 ; 



chemical composition of the, 588. 

 Eeclan Hill, Alder shot, section from 



Thorn Hill to, 431. 

 Beid, Mr. C, on the origin of Dry 



Chalk valleys and of Coombe Bock, 



364. 



Bemains of Fishes from the Keuper of 

 Warwick and Nottingham, 537. 



Beptocavea aspera, 347. 



Bhyl, section in drift-beds near, 98. 



Bhynchonella Cuvieri, zone of, 563. 



Bhynchopora longirostris, 70. 



Bhynchosauridas, 691. 



Bhynchosaurus articepts, 676, 689. 



Bhyolite, ejected from Tarawera, 184 ; 

 near Quiniperle, 306. 



