650 



Poitlock's report on the geology of 

 Londonderry, notice of, 81. 



Portlock, Capt., on the white limestone 

 of Corfu and Vido, 355. 



Post-tertiary formations of Tuscany, 

 469. 



Pratt, Mr., on the geology of the neigh- 

 bourhood of Bayonne, 157. 



President's address for 1843, 65. 



Primary and transition rocks of Canada 

 and Labrador, Capt. Bayfield on, 584. 



Protozoic rocks of North Wales, 251, 

 268. 



Psaliodus n. g., description, 156. 



Pseudocrinites, a proposed new genus 

 of Encrinites, description of, 160. 



Pseudocrinites bifasciatus, 160. 



quadrifasciatus, 160. 



Pulborough, on green sand fossils found 

 at, 201. 



Radicofani in Tuscany, account of the 

 basalt of, 477. 



Rain- and ripple-marks in the new red 

 sandstone of New Jersey, U.S. ,23. 



Raised beaches, notice of, in the Presi- 

 dent's speech, 91. 



explanation of, by Mr. Harkness, 



178. 



on the western coast of Ross-shire, 



account of, by Mr. Jeffreys, 434. 



Ray, fossil (Cyclobatis oligodactylus), 

 from Mount Lebanon, account of, by 

 Sir P. Egerton, 442. 



Redfield, Mr., on fish beds in the new 

 red sandstone of New Jersey, U.S., 23. 



Rees, Dr., on the existence of fluoric 

 acid in recent bones, 373. 



Reports, annual, for 1 843, 41 ; for 1844, 

 345 ; for 1845, 527. 



Ridges, raised beaches and boulder for- 

 mation of Canada, Mr. Lyell on, 19. 



Riley, Dr., his discovery of a bone- 

 cavern near Bristol, 90. 



Ringerigge (Scandinavia), section a- 

 cross, 603. 



Ripple-marks in the new red sandstone 

 of New Jersey, U.S., 23. 



Robertson, Mr., on the oolitic coal of 

 Brora, 173. 



Rochester, U.S., Mastodon remains 

 foimd there, 38. 



Rogers, Prof. H. D., notice of his me- 

 moir on the disturbances of the Appa- 

 lachian chain, 118. 



Ross-shire (N.B.), Mr. Jeflreys on 

 raised jieaches on the western coast 

 of, 434. 

 Rotalina, figure of a new species of, from 

 the New Jersey cretaceous beds, 310. 

 Royle, Dr., on the tin- mines of Tenas- 

 serim, 165. 



Russell, Mr. Scott, his theory of waves, 



91. 

 Russia, notice of the geology of, in the 



President's speech, 100. 



account of the Permian system 



of, by Mr. Murchison and M. de 



Verneuil, 327. 



palaeozoic deposits of, in the Bal- 

 tic provinces, 601. 



St. Lawrence, valley of, on the ridges, 

 boulder formation, &c. of, 19. 



Saliferous marls of the new red sand- 

 stone, Mr. Williams on the origin of, 

 365. 



Salter, Mr., and Mr, Sowerby, their 

 table of the fossils of the Denbigh 

 flagstone and sandstone series of 

 North Wales, 267. 



Sand-galls or pipes in the chalk, Mr. 

 Trimmer on, 6. 



in the Norfolk chalk, Mr. J. 



Trimmer's account of, 482. 



Sandown Bay, Dr. Fitton on the lower 

 greensand section in, 101. 



Santa Fe de Bogota, Prof. Edw. Forbes V; 

 account of fossil (cretaceous) shells' 

 collected there by Mr. E. Hopkins, 

 391. 



Scaglia of Tuscany, its position, 458. 



Scandinavia and Baltic provinces of 

 Russia, Mr. Murchison on the pa- 

 laeozoic deposits of, 601. 



Silurian fossils of, compared with i 



those of other regions, 626. 



Schomburgk, Sir Robert, on the geology I 

 of British Guiana, 480. 



Scottish border, rocks of, 79. 



Scutella Jonesii, 574. 



Secondary British rocks, notice of, in 

 Mr. Murcbison's speech, 86. 



Secondary formations of Tuscany, re- 

 marks on, by Mr. Hamilton, 457. 



Sedgwick, Prof., his view of the palaeo- 

 zoic rocks of Cumberland stated, 70. 



his views of the structure of 



NorthWales, 73, 212, 251. 



his views in geological dynamics, 



91. 



comparative classification of the 



fossiliferous strata of Cumberland 

 and North Wales, 576. 



account of two fossil species of 



Creseis collected by him, 362. 



Selagite of Tuscany at Monte Catini,477. 



Semionotus minutus, 183. 



Pentlandi, 183 



pustulifer, 183. 



Septaria, Mr. Warburton on a bed of, 

 containing fi'eshwater shells in the 

 plastic clay at New Cross, Kent, 389. ; 



Serpentine of Tuscany, 473. 



