GENEEAL INDEX. 



ceeding Palaeozoic rocks were pro- 

 bably deposited over the, Proc. 10. 



North Huel Rose, greenstone from, 

 175 ; analysis of, 175. 



Wales, Mr. D. Mackintosh on 



the mode of occurrence and deri- 

 vation of beds of drifted coal near 

 Cor wen, 451. 



Nottingham, section of Permian and 

 Triassic rocks on the Great Northern 

 Railway near, 536. 



, Mr. A. Irving on some recent 



sections near, 513. 



Oreodon, 262. 



Orthacanthus cylindricus, 336. 



Orthopterous insect, Mr. H. Wood- 

 ward on a remarkable, from the 

 Coal-measures of Scotland, 60. 



Orthopus primcsvus, 353. 



Ossiferous zone, Mr. Johnston Lavis 

 on an, containing bones of a Laby- 

 rinthodont, 274. 



Owen, Prof., evidence of Theriodonts 

 in Permian deposits elsewhere than 

 in South Africa, 352. 



, evidence of a carnivorous reptile 



(Cynodraco major) about the size 

 of a lion, with remarks thereon, 95. 



Ox, short-horned, occurrence of, in 

 the Robin-Hood Cave, 247. 



Oxbow, Jefferson County, New York, 

 Giant's Kettle near, 78. 



Pakefield, Mr. J. Gunn on the pre- 

 sence of the forest-bed series at, 123 ; 

 section of cliff at, 124. 



Palceachlya perforans, 210. 



Palcechinus intermedins, 37. 



gigas, 38. 



sphcericus, 38. 



Palaeolithic hunters, north-western 

 range of, 255. 



Palaeozoic Echini, Mr. W. Keeping on 

 the, 35. 



insects and arachnida, 63. 



rocks, Mr. H. Hicks on the 



physical conditions under which the 

 Upper Silurian and succeeding, were 

 probably deposited orer the northern 

 hemisphere, Proc. io. 



Pareiasaurus bombidens, 44. 



serridens, 45. 



Parkside, section of haematite vein in 

 Carboniferous Limestone at, 183. 



Paul Hill, crystalline slaty rock from, 

 165. 



Peake Hill, section from Ladram Bay 

 to Sidmouth through, 276. 



Pebble-beds of Budleigh Salterton and 

 Burlescombe, 382. 



Pendower cove, analysis of crystalline 

 rock from, 171. 



Pennine chain, Mr. Aitken on the un- 

 equal distribution of drift on op- 

 posite sides of the, 184. 



Penning, W. H., Esq., notes on the 

 physical geology of East Anglia 

 during the glacial period, 191. 



Penzance, crystalline slaty rock from 

 Chyandour, 166. 



district, analyses of altered crys- 

 talline rocks from the, 162. 



Perischodomus, 35. 



Permian deposits, Prof. Owen on evi- 

 dence of Theriodonts in, elsewhere 

 than in South Africa, 352. 



and Triassic strata near Not- 

 tingham, 513, 533. 



Permians of the north-east of Eng- 

 land, Mr. E. Wilson on the, 533. 



Pic de Sancy, columns of trachyte 

 curving to a joint in the, 142. 



Picked rock, section from Ladram 

 Bay to Sidmouth through the, 276. 



Phillips, J. A., Esq., on the so-called 

 "greenstones" of Western Corn- 

 wall, 155. 



Phorus delectus, 529. 



Phosphates, Dr. Dawson on the, of 

 the Laurentian and Cambrian rocks 

 of Canada, 285. 



Physical geography of the Australian 

 seas in Cainozoic periods, 345. 



geology of East Anglia during 



the Glacial period, 191. 



Plan of arrangement of haematite de- 

 posits, Millom, Cumberland, 181. 



Pleuracanthus laevissimus, 336. 



Pleurodus afEnis, 337. 



Rankini, 337. 



Pleurotoma consors, 527. 



squamosa, 527. 



Pliocene deposits south and east of 

 the chalk escarpment in East 

 Anglia, 192. 



Plymouth limestone, Mr. R. N. Worth 

 on certain alluvial deposits associ- 

 ated with the, 236. 



Polar ice-cap, Mr. J. J. Murphy on 

 the Glacial climate and the, 400. 



Pol den hills, trias north of the, 367 ; 

 trias of the area of the, 373. 



Polyptychodon, Prof. H. G. Seeley on 

 an associated series of cervical and 

 dorsal vertebrae of, from the Upper 

 Greensand, 433. 



Pont-Newydd caves, Mr. D. Mackin- 

 tosh on the deposits of the, 91. 



Postglacial deposits south and east of 

 the chalk escarpment in East Anglia, 

 195. 



