Vol. 58.] 
Plateau-grayel of Englefield, flint- 
implemt. from, Ixxxii. 
Platopolichas, 62. 
Platylichas margaritifer, 72-73 figs. 
Platymetopus levis, 80 fig. 
Platynotus, 62. 
Platypeltis sp. cf. Croftii, 122 fig. 
Plauen (Saxony), mineral. & chem. 
anal. of syenite from, 175-76. 
Prayer, J. H., 440. 
Pleistocene Epoch, meteorol. condits. 
of, 37-45 ; Pleistoc. (?) stony clay in 
Europ. Turkey, 152 e¢ seqg., 157-58 ; 
coral-marls & gravels of Dominica, 
348-50; Pleistoc. of Barbados, 361— 
63; of Trinidad, 363; Pleistoc. 
lakes, criteria for recognit: of, 473- 
81. 
Pleurotomaria (& Murchisonia), Pro- 
teroz. gasterop. ref. to, 313-39 & 
pls. vii-ix. 
Pliocene petroleum-bearing sands & 
clays in Hurop. Turkey, 156 e 
segg.; Plioc. of Dominica, 349-50 ; 
of Barbados, 360-61 ; glacio-fluviat. 
conglom. in Subalpine France & 
Switzerland, 450-70 figs. 
Plusiarges, 62. 
Plutonic complex of Central Anglesey, 
662-79 w. map & figs. 
Pneumatolytie action, Ixxv. 
Point-de-Galle Group (Ceylon), 680- 
89 figs. & pl. xxxiv (map). 
Point of Ayre (I. of Man), borings 
at, 652-55, 659. 
PouiarD, W., [chem. anal. of Skye 
Gabbro], 169; [chem. anal. of vole. 
ash fallen in Barbados], 369. 
Polyphyma Lapworthi, gen. et sp. nov., 
83-88 fig. & pl. ii. 
Port Gower (Sutherland), inlier of 
Caithness Flags near, 291-97 figs. 
Porth Nobla (Anglesey), halleflinta, 
&e. of, 666, 667, G6. 
Porth Trecastell (Anglesey), mica- 
oneiss, &c. of, 657, 668. 
Portlandian (?) of Navidale, &c., 300, 
302, 310. 
Portraits of eminent geologists, xiv. 
Post-Carboniferous Armorican move- 
ments, 213, 221. 
Post-Cretaceous Charnian movemt., 
213, 221. 
Post-Oligocene movemts. determg. 
river-systems of S. Wales, &c., 
221. 
Postieruwaite, J. [on Equus fossilis 
fr. Keswick], v. 
Poulnakeragh (Kerry), rhyolite & 
fossilif. Silurian of, 248, 244, 259, 
261. 
GENERAL INDEX. 
767 
Pre-Glacial level of Yorkshire, 487— 
89. 
Pre - Pliocene movemts. determg. 
river-systems of 8. Waies, &c., 221. 
Pre - Triassic Armorican movemt., 
213; do. Charnian, 221. 
Preuier, C. 8S. Du Ricun, on Plioc, 
Glacio-Fluviat. Conglom. in Sub- 
alpine France & Switzerland, 450- 
67 figs., 469-70. (See also Krrata.) 
Prior, G. T., 402, 415, 422. 
Protective action of snow & ice, 699, 
708 et seqq. 
Proterozoic gasteropoda referred to 
Murchisonia & Pleurotomaria, 313- 
39 & pls. vii-ix. 
Prototichas, 81, 82. 
Pseudodiadema (?) fr. Lr. Lias, 729. 
Pterolichas, 62. 
Pumice in silic. sinter fr. Builth & 
Rotorua, 29 e¢ segg. figs. & pl. ii 
(microsc. sects.). 
Pumice-breccia fr. Rotorua, 33. 
Pyroxene-granulites of Ceylon, sce 
Charnockite Series. 
Quartz fr. Bunter Pebbie-Bed, 625 ; 
in Ceylon gneisses, 685. 
Quartz-felsite of Central Anglesey, 
668-69, 676. 
Quartz-porphyry of Coosgorrib, 263. 
Quartz-schists of C. Anglesey, 667. 
Quaternary shell-beds at Gallipoly, 
160, 161. 
Questions to Secretaries, xi. 
Radial groupg. of felspars in Anglesey 
diabase, 427, 432 & pl. xvi (microsce. 
sect.). 
Radiolarian cherts of Anglesey, see 
Jaspers. 
Radstock Series (Upper C.M.), over- 
lap-fault & dead ground in, 611 
et seqq. figs. 
Ragged Point (Barbados), sect. near, 
358 ; R. P. Series, 360-61. 
Raggedstone Hill (Malvern), 92 e7 
. seqg.; Hyolithide from, 113 et segg. ~ 
Raindale Mill (Yorks), 484, 502. 
Raised beaches (Sea of Marmora), 
158-59, 160 et seqq. 
Raised Coral-Reefs of Barbados, 356,. 
397-60 figs., 365 et seq. 
Raisin, Miss C. A., 197. 
Rakwane (Ceylon), lime&t. & granulite 
at, 406-407. 
Ranpat., F. A., 443. 
Randay-Mere valley (Yorks), 509 e 
seqg.; viewed fr. south, 508 fig. 
