﻿INDEX TO THE PROCEEDINGS. 



Piedmont Glen flagstones, fossils of the, 

 172. 



Pipes and furrows on surface of chalk, 

 23. 



Pisolite of Gloucestershire, 208. 

 Plants, fossil, of the Isle of Mull, 103. 



, , noticed, xl. 



, some fossil, of Yorkshire, 179. 



Platanites Hebridicus, 103. 



, var., 103. 



Pleistocene period, Mr. Austen on the, 

 118. 



Pleurorhynchus dipterus, var. rhomboi- 



deus, 175. 

 Pliocene beds of the Punjaub, 41, 43. 



mammalia, noticed, lxix. 



Plutonization of rocks, Mr. J. R. Logan 



on the, 340. 

 Porphyry of Belgium, Prof. Delesse on 



the, 6. 



Potamomya } Sowerbii, 112. 



? Sedgwickii, 113. 



Potsdam sandstone, reptile-tracks in 

 the, 247, 250 ; noticed, Ixxv. 



President's Anniversary Address, xxv. 



Prestwich, Mr. J., jun., on the drift of 

 Sangatte Cliff near Calais, 274. 



Prevost, M. Constant, on successive de- 

 velopment, noticed, xxxvi. 



Primary fossiliferous strata, flora of, 

 noticed, xl ; fauna of, noticed, Hi. 



Protornis Glariensis, noticed, lxiii. 



Pterodactyles of the chalk, noticed, 

 lxiii. 



of the Stonesfield slate, noticed, 



lxii. 



Pulmoniferae, absence of, in the coal- 

 measures, noticed, liv. 



, Wealden, noticed, lviii. 



Pungernite, description of, 66. 



Punjaub, Upper, Major Vicary on the 

 geology of, 38. 



Quenast, the porphyry of, 6. 



Radiata, Silurian, noticed, lii. 



Rain-prints, Sir C. Lyell on fossil, 238 ; 

 on recent, 239 ; triassic, 242 ; carbo- 

 niferous, 244 ; recent, noticed, lxi. 



Ramsay, Prof. A. C, on the sequence 

 of events during the Pleistocene pe- 

 riod, as evidenced by the superficial 

 accumulations and surface-markings 

 of South Wales, 207. 



Rastrites peregrinus, 59. 



triangulatus, 59. 



Redfield, Mr., on triassic rain-prints and 

 foot -tracks, lx. 



Report of the Council, i ; of the Library 

 Committee, v ; of the Museum Com- 

 mittee, iii. 



Reptiles of the coal-measures, noticed, 

 lvi. 



Reptile-tracks, triassic, noticed, lx. 



, Silurian, 247, 250. 



, , noticed, lxxv. 



, carboniferous, noticed, lvii. 



Rhamnites ? ? lanceolatus, 103. 



? major, 103. 



? multinervatus, 103. 



Richardson, Sir J., on some points of 

 the physical geography of North Ame- 

 rica in connection with its geological 

 structure, 212. 



Rissoa (Hydrobia) conulus, 110. 



Rocky Mountains, structure of the, 

 212. 



Rose-coloured syenite of Egypt, li. 



Runton, Mr. Trimmer on the fluvio- 

 marine beds at, 20 ; Mr. Austen on 

 the fluvio-marine beds at, 133. 



Russia, discovery of pungernite in, 66. 



Sagenopteris cuneata, 184. 



Salter, Mr. J. W., on the Silurian fossils 

 of Ayrshire, 170; on the remains of 

 fish in the Silurian rocks of Great 

 Britain, 263. 



Salt rock of the Himalaya, 297. 



of the Punjaub and of Subathoo, 



45. 



Sangatte drift, Mr. Prestwich on the, 

 274. 



Saugh Hill, section of, 147. 



■ sandstones, fossils of the, 



172. 



Sauroid fishes, noticed, lv. 



Savi on the Verrucano, noticed, xliii. 



Scalariform Graptolites, 64. 



Scandinavian boulders of Norfolk, 21. 



Scotland, geological map of, 139. 



, South, Mr. Harkness on the Si- 

 lurian rocks of, 56. 



, , Sir R. I. Murchison on the 



Silurian rocks of, 137. 



Secondary rocks, the invertebrata of 

 the, noticed, lvii; the vertebrata of 

 the, noticed, lix, 



Sedgwick, Prof., award of theWollaston 

 Medal to, xix; on fossil cetacean 

 remains, noticed, lxvi ; on the theory 

 of progressive development, noticed, 

 xxxiii; reply on receiving the Wol- 

 laston Medal, xx. 



Sichon, Sir R. I. Murchison on the 

 carboniferous rocks of the, 13. 



Sidlaw Hills, Sir R. I. Murchison on 

 the geology of the, 168. 



Silures, district of the ancient, in Scot- 

 land, 141. 



Silurian fauna, noticed, lii. 



fish-remains, Mr. Salter on, 263. 



— fossils of the Himalayas, 303. 



reptile-tracks, 247, 250; noticed, 



lxxv. 



