Vol. S i.] 



GENERAL INDEX. 



693 



Palaeozoic rocks in Equatorial Africa, 

 677. 



Palasozoic, Lower, life-history of Crus- 

 tacea, lxx. 



Palagonite in oceanic Bed Clay, 318. 



Panama, submergence of, 299. 



Panamaic and Caribbean fauna, re- 

 lations of, 300. 



Passage Beds (Coal Measures), name 

 proposed for Wyre Forest ' Per- 

 mian,' 547 ; break-up of passage- 

 beds producing crush - conglo - 

 merates, 583, fig. 



Pebble- and chert-beds east of Dork- 

 ing, 110, 122. 



Pebbles, so-called, in crush-conglome- 

 rate of Isle of Man, 594. 



Pectinia mseandrites, 263. 



Peel (Isle of Man), crush-structure in 

 rocks near, 568, 569. 



Pegglesworth Hill (Gloucestershire), 

 section descr., 423. 



Pegmatite of Forfarshire type, in 

 relation to greisen of Grainsgill, 

 143. 



Pelorosaurus Leedsi, caudal vertebra 

 compared with those in Bothriospon- 

 di/lus madagascariensis, 332. 



Penarth quarries (Pen-y-glog), 12; 

 list of fossils from, 16. 



Pengelly, William, obituary of, liii. 



Penrhiw (Pembrokeshire), nodular 

 structure in glassy intrusive rock 

 of, 188 ; perlitic rock of, 189. 



Penrhyn (Pembrokeshire) fault, 152 ; 

 volcanic breccias at, 159. 



Pen-y-glog Grits, 14, 17. 



Pen-y-glog Slates, 12, 16. 



Pen-y-vivod (Denbighshire), section 

 to Moel Ferna, 14. 



Perisphinctes allied to polygyratus, 

 78. m 



Perlitic structure in lavas of Fish- 

 guard area, 160, 163, 172 & pi. vi. ; 

 in intrusive rock of Penrhiw, 189. 



Permanence of oceans and continents 

 disputed, 307, 309. 



Permian freshwater lamellibranchiata 

 compared with those from the 

 Karoo system of South Africa, 337 

 & pis. xii., xiii.; so-called Permian 

 of South Staffs., 529 ; do. of Wyre 

 Forest ( = Enville), 533; thin coals 

 in same, 540 ; fossils and classifica- 

 tion of same, 541. 



Perna latoconvexa, sp. nov., 80 & 

 pi. ii. ; P. orientcdis (?), 80 & pi. ii. 



Perna-bed, name given by Wright to 

 Witchellia-grit, 418. 



Pctraia, sp. (Lower Culm), 645 & 

 pi. xxviii. 



Phillipsia Cliff ordi, 646 & pi . xxviii. ; 



Q. J. G. S. No. 204. 



Ph. Leei, 646 & pi. xxviii.; Ph. 



minor, 646 & pi. xxviii. ; Ph. (?) 



from Lower Culm, 647 & pi. xxviii. 

 Phyllocarida, lxxxiii. 

 Phyllopoda, systematic position of, 



lxxxiii. 

 Pieter Both Mountain (Mauritius), 



464. 

 Pigeon Point (Minnesota), grano- 



phyre compared with that of Car- 

 rock Fell, 138, 139. 

 Pinchley Grove (Gloucestershire), 



section descr., 424. 

 Pinites from Folkestone Sands of 



West Surrey, 123. 

 ' Pitch-glacier,' experiments with, 



361. 

 Pithodea included in Pleurotoma- 



riida;, 213. 

 Plant- remains from Madagascar, 85 ; 



in Wyre Forest ' Permian,' 541. 

 Pleistocene Beds of the Maltese 



Islands, 49. 

 Pleistocene submergence of Panama 



denied, 300 ; mammalian remains 



in high-level gravels of North Kent, 



521. 

 Pleurodictyum Bechenianum, 644 & 



pi. xxviii. 

 Pleurotomaria, genera intermediate 



between Murchisonia and, 212. 

 Pliocene deposits in Switzerland, 371 



et seqq. 

 Porites astraeoides, 284 ; P. clavaria, 



282. 

 Porodiscus brevis, sp. nov., 640 & 



pi, xxvii. ; P. clathratus, sp. nov., 



640 & pi. xxvii. ; P. lens, sp. nov., 



610 & pi. xxvii. ; P. percinctus, 640 



& pi. xxvii.; P. sp. a (Lower 



Culm), 640 & pi. xxvii. 

 Post-Cretaceous disturbances in Dor- 

 set, 551. 

 Postlethwaite, J., Notes on some 



Bailway-cuttings near Keswick, 



493. 

 Pre-Carboniferous age of crush-con- 

 glomerates in the Isle of Man, 584. 

 Preller, C. S. du Riche, on Fluvio- 



glacial and Interglacial Deposits in 



Switzerland, 369. 

 Product-its concentricus, 650 & pi. 



xxviii. ; Pr. cf. Pr. Imvipunctatus, 



650 & pi. xxviii. ; Pr. plicatus, 649 



& pi. xxviii. 

 Proetus, spp. a, b (Lower Culm), 648 



& pi. xxviii. 

 ' Pseudospherulites,' 171. 

 Pseudotrape,~ium depression, sp. nov., 



85 & pi. hi. ; Ps. elongatum, sp. 



nov., 85 & pi. iii. ; Ps. ventricosum, 



sp. nov., 84 & pi. iii. 



3c 



