INDEX TO THE PROCEEDINGS. 



Malsej Ghaut, Mr. Conybeare on, 225. 



Malta, recent depression of, 240. 



Mammalia, fossil, in Russia, Ixxix. 



Man, Rev. J. Gumming on geology of the 

 Calf of, 179. 



Mastodon, Mr. Lyell on remains of, in 

 North America, Ixxxi. 



Merionethshire, area of elevation in, 90. 



, sections in, 143. 



Mines, in Sweden, 15. 



Mitrajuniperus, n. sp., 113. 



Murchison, SirR.I., on the Silurian and 

 associated rocks in Dalecarlia, and on 

 the succession from Low^er to Upper 

 Silurian in Smoland, Oland and Goth- 

 land, and in Scania, 1. 



,on the tertiary deposit at (Eningen 



containing the bones of the fossil 

 fox, 54. 



■ , notice of his views on recent 



changes in Russia, xlix ; on the ele- 

 vation of the Ural, Ixxix. 



, on Silurian rocks of N. Wales and 



the meaning of the term ' Cambrian 

 system,' 165. 



, introduction to Capt. Vicary's se- 

 cond memoir on the geology of parts 

 of Sinde,331. 



Naples, tides in the Bay of, 235, note. 



Nasmyth, Mr., on slow transmission of 

 heat, 232. 



Nassa Pusio, n. sp,, 421. 



■ proxima, n. sp., 422. 



parvula, n. sp., 422. 



inconspicua, n. sp., 422. 



Natica perpu&illa, n. sp., 420. 



Neuropteris linrKBcefoUa, n. sp., 281. 



■ cordata, 423. 



{var. angustifolia), 424. 



rarinervis, n. sp., 425. 



New South Wales, Mr. Jukes's notes on 

 the palaeozoic formations of, 241. 



Norfolk Bay, New South Wales, geology 

 of, 247. 



Northern Drift, Prof. Wliewell on, 

 227. 



Odontopteris suhcuneata, n. sp., 427. 



CEningen, Sir R. I. Murchison on the 

 tertiary deposit at, 54. 



— — , Prof. Owen on fossil fox of, 55. 



Oland, Sir R. I. Murchison on the geo- 

 logy of, 16. 



Oolite coal of Eastern Virginia, Mr. 

 Lyell on the, 261. 



Orthoceras, Mr. Anthony on an impres- 

 sion of the soft parts of, 255. 

 Ostrea crassicostata, n. sp., 420. 



Owen, Prof., on the fossil viverrine fox 

 of (Eningen, 55. 



, on the Batracholites, indicative 



of a small species of frog, 224. 



Palaeontology, progress of, in 1846, 

 Ixxxix. 



Palaeozoic rocks of New South Wales, 

 Mr. Jukes on, 241. 



Passalodon, shown to be a portion of 

 Edaphodon, 353. 



Pecopteris {Aspidites) bidlata, n. sp., 

 283. 



tceniopferoides, n. sp., 428. 



Pecten Pandorce, 418. 



tenuisidcatus, n. sp., 418. 



conjux, n. sp., 418. 



Josslingii, n. sp., 419. 



f rater cuius, n. sp., 419. 



expansus, n. sp., 419. 



—' — acuticostatus, n. sp., 419. 



macrotis, n. sp., 420. 



giganteus, n. sp., 420. 



Pembrokeshire, cleavage planes in, 94. 



Petherwin, limestone quarries at South, 

 77. 



Pholas altior, n. sp., 417. 



Pilla, M., on Rocca Monfina, Ixxxii. 



Plants, fossil, from Virginia, described, 

 281 ; from coal formation of Cape 

 Breton, 423. 



Pleurotoma Icevigata, n. sp., 421. 



denudata, n. sp., 421. 



Plynlimmon group, described, 152. 



Porphyry, varieties of, in Sweden, 8 ; of 

 Elf Dal, 11. 



Portsmouth Harbour, Capt. James on a 

 section at, 240. 



Pozzuoli, changes of level in the land 

 near, 186, 234. 



Prestwich, Mr., on the probable age of 

 the London clay, and its relations to 

 the Hampshire and Paris tertiary' sy- 

 stems, 234, 354. 



, on the main points of structure 



and the probable age of the Bagshot 

 sands, 378. 



, table of English and French ter- 

 tiary systems, 400. 



Purbeck strata with insects at Swindon, 

 Wilts, 53. 



Radnorshire, cleavage planes in, 94. 



Rana pusilla, n. sp., 224. 



Report, Annual, for 1847, i. 



Rhayader slates, described, 153. 

 Richmond, Virginia, Mr. Lyell on coal- 

 field of, 261. 

 Robertson, Mr., on the Wealden of 

 Brora, Sutherlandshire, with remarks 

 on the relations of the Wealden strata 

 and Stonesfield slate to the rest of the 

 Jurassic system, 113. 

 Rocca Monfina, geology of, Ixxxi. 

 Salter,Mr., description of a fossil Chiton, 



48. 

 , on structure of Trinucleus, 251. 



