698 



GENERAL INDEX. 



[Dec. 1912, 



Pinskev-Gill Beds, 485, 496-99 w. 



cliem. anal. 



Pisidmm niiidum, 239 & pi. xvii. 



obtusale, 2.S9. 



pusilhtm, 239 & pi. xvii. 



supirium, 239 & pi. xvii. 



Pithodea, diagnosis, &c. of, 304. 



amplissima, 305 & pi. xxx. 



percincta, 305 & pi. xxx. 



Plmiorhis nrciicus, 237 & pi. xvii. 



crista, 237. 



leucostoma, 237. 



spirorhis, 237. 



Plant-remains fr. Arctic Bed, 229-33 

 w. list ; pl.-rem. &c. fr. Permian 

 of Warwickshire, 607-609; fr. 

 Carb. of Warwickshire Coalfield, 

 618-29 & pis. ivii-lx ; see also 

 Alg«, Cordaites, &c. 



Pleinmont Grit (Guernsey), 47-51 & 

 pi. i (microscop. sect.). 



Pleistocene deposits, correlation of, 

 219-21 et seqq. 



Plenrodictyum contrasted with 

 Vaughania, 566. 



Pleurotomaria conica possibly refer- 

 able to Trechmannia, 303—304. 



Poles worth (Warwickshire) claj-pit, 



sect, descr., 594. 

 Pollard, W., 391. 



Pouder's End (Middlesex), Arctic 

 Bed at, 213-51 fig. & pis. xv, xvii. 



Pont-vr-hafod Group (Pebidian), 



378-79, 384-85. 

 Post-Cambrian basic dykes in Pem- 

 brokeshire, 396. 

 Post-Glacial (& late Glacial) changes 

 in Lr. Dee Valley, 180-98 figs. & 

 pi. xi (map). 

 Polycreagra compared w^ Pteronidia, 



Pre-Cambrian (& Cambrian) rocks of 

 Brawdy, &c., 374-401 figs. & pi. xl 

 (geol. map) ; see also Dimetian, 

 Longmyndian, ^r. 



Pre-Carboniferous floor of Warwick- 

 shire Coalfield, 592. 



Pre-Glacial Dee A'alley nr. Holt & 

 Chester, 192-94 w. map ; pre- 

 Glacial topogr. of part of Dee 

 valley, pi. xi (map); pre-Glac. con- 

 dition of Black-Combe district, 407. 



Preston Bagot (Warwickshire), Arden 

 Sandst., &c. near, 260. 



Prestwicii Medal, application of, ix ; 

 Pr. medallists, list of, xxx. 



Prixgle, J., 392. 



Prior, G. T. [exhibits meteorite on 

 behalf of W. F. Hume], i ; [exhibits 

 specims. fr. new island formed off 

 Trinidad, &c.], vi. 



Proctor, R., [on O. E. S. below 

 London Basin], cvi-cvii. 



Prodicctus corrugato - heraisphericus, 

 Zone in N.W. Province, 4(i9-74 w. 

 lists of foss., 490-92, 501-503, 510- 

 11, 513, 520, 521. 523, 531, 533. 



cl.giqoMteus, 569-70 ; Pr.-ct g. 



Band, 482, 494. 



globosus, sp. nov., 568-69 & 



pi. ii ; Pr. aff . glohosus, 5()9 ; Pr.-gl. 

 Band in 1S\W. Province, 462-63 

 w. list of foss., 488-89, 500. 



cf. maximus, 570 & pi. li. 



rotundus, sp. nov., 569 & pi. li. 



Productive Coal Measures in 

 Warwickshire Coalfield, 593-98. 



Pseudo-breccias in Lr. Bihuno- 

 phyllum Sub-zone in K'.W. Pro- 

 vince, 477, 492, 511, 528, 533. 



Pteronidia plicatida, gen. et sp. nov., 

 313-14 <Sr pi. xxxii. 



Pteronidiie, diagnosis of new family, 

 314-15. 



Pyroxene-andesites of Cerro Cande- 

 laria, 112; of El Brazil, 117. 



Quarterly Journal (Geol. Soc), ex- 

 penditure, &c. discussed, Ixxi. 



Quartz-bearing soda-rhyolites, see 

 Quartz-keratopbyres. 



Quartz-felsite of Castle Cornet, 43 & 

 pi. i (microscop. sect.). 



Quartz-keratophyres of Rhindaston 

 & Gignog Group, 379-80, 385-87 

 fig. (microscop. sect.). 



Quartz-porphyrites in Guernsey, 50. 



Quartz - porphyry (Dimetian) of 

 Brawdv & Hayscastle district, 380, 

 381,383,388. 



Quartz-sand in Keuper Marl of 

 Charnwood area, 289. 



Quartzites (& phyUites) of Kinta, 144 ; 

 see also Glen-Coe Quartzite. 



Rain-prints in Hamstead Permian, 

 640, 677, 678. 



Ramsay, Sir William, [his estimate 

 of British coaj -resources], Ixxviii- 

 Ixxx. 



Rastall, R. H., 138 ; award fr. Lyell 

 Fund ro, xlvi-xlvii. 



Ravenstonedale District (Westmor- 

 land), Lr. Carb. succession in, 495- 

 504 w. lists of foss. & pis. liii, Ivi. 



Reading Beds, sarsens derived from, 

 201. 



Recumbent fold in Beinn Udlaidh, 

 166 et seqq. figs. 



Reed, F. R. C, 99, 308. 



