INDEX TO THE PROCEEDINGS. 



Pachyrisma, a fossil genus of lamelli- 

 branchiate mollusca, 399. 



Morris, Mr. J., award of Donation Fund 

 to, xxvi ; reply on receiving it, xxvi, 



J on the occurrence of mammalian 



remains at Brentford, 201. 



, on Zamites gramineus, 199. 



Mount Loa, noticed by Sir C. Lyell, 232. 



Murchison, Sir R. I., on the structure 

 of the Alps, Carpathians and Apen- 

 nines, noticed, xxxiv ; on the Flysch, 

 noticed, xxxvii ; on the detr'tus of the 

 Alps, QQ ; on the earlier volcanic rocks 

 of the Papal States and the adjacent 

 parts of Italy, 281 ; on the vents of 

 hot vapour in Tuscany, and their re- 

 lations to ancient lines of fracture and 

 eruption, 367. 



Murex Domingensis, 49. 



Mytilus Beirensis, 187. 



Morrisii, 187. 



Nagelflue, and its origin, noticed, li. 



Naiadaceae, Prof. J. Buckman on the, 

 415. 



Naiadita lanceolata, 415. 



obtusa, 415. 



petiolata, 415. 



Nash Scar limestone, Mr. J. E. Davis on 

 the, 432. 



Natica subclausa, 51. 



Lusitanica, 192. 



Nerinaea, Mr. D. Sharpe on the genus, 

 101. 



Nerincea annulata, 112. 



Archimedis, 103. 



Bruntrutana, 104. 



Conimbrica, 114. 



Dupiniana, 103. 



Eschwegii, 1 1 3. 



gi'cmdis, 104. 



" , list of species of, 105. 



nobiliSf 111. 



Olisiponensis, 114. 



Titan, 112. 



turbinata, 113. 



Nerinella, list of species of, 105. 



, Mr. D. Sharpe on the subgenus, 



103. 



Nerita turbinata^ 192. 



Neritina bicornis, 192. 



New red sandstone of Dumfriesshire, 

 Mr. R. Harkness on the, 389. 



New Zealand, Dr. G. A. Mantell on the 

 geology of the Middle and Northern 

 Islands of, 319. 



, Prof. E. Forbes on the fossiliferous 



deposits in the Middle Island of, 343. 



Nicol, Mr. James, on the Silurian strata 

 of the south-east of Scotland, 53. 



Nile-Valley, Mr. L. Horner on sculp- 

 tured marks in the, 384. 



Nith, Mr. R. Harkness on the new red 



sandstone of the Vale of the, 389. 



Notices of deceased Fellows, xxvH- 

 xxxii. 



Nova Scotia, the metamorphic and me- 

 talliferous rocks of Eastern, 347. 



Nucula (Leda) Phillipsii, 318. 



Nummulina, Dr. Carpenter on the struc- 

 ture of, 21. 



Nummulina complanata, 25. 



Iceuigata, 22. 



Nummulitic rocks, noticed, xxxviii. 



, Dr. Boue on the, noticed, xxxv. 



Old red conglomerate of the Eastern 

 Lammermuirs, Mr. W. Stevenson on 

 the, 418. 



Oliva cylindrica, 45. 



Onekakara, pleistocene clay of, 330. 



Oniscia Domingensis, 47. 



Oolite of Leckhampton Hill, Rev. P. B. 

 Brodie on the inferior, 239. 



of Wilts, Mr. R. N. Mantell on 



the, 310. 



Orbitoides, Dr. Carpenter on the struc- 

 ture of, 32. 



Orbitoides Mantellii, 32. 



Prattii, 33. 



Orbitolites, Dr. Carpenter on the struc- 

 ture of, 30. 



Orbitolites complanata, 31. 



Ostrea Haitensis, 53. 



Ototara limestone, 328. 



Pachyrisma, Messrs. Morris and Lycett 

 on the genus, 399. 



Pachyrisma grande, 401. 



Palseoniscus, Sir P. G. Egerton on the 

 genus, 4. 



Palceoniscus arcuatus, 7. 



Beaumonti, 6. 



catopterus, 4. 



■ decorus, 7. 



■ Egertoni, 5. 



Gelberti, 5. 



macrophthalmus, 6. 



megacephalus, 6. 



Monensis, 5. 



ornatus, 4. 



pygmaeus, 6. 



speciosus, 4. 



Tchefkini, 5. 



Palichthyologic notes, No. 3, by Sir P. 

 G. Egerton, 1. 



Palma, island of, noticed by Sir C. Lyell, 

 213. 



Paroxysmal hypothesis, noticed, xlv. 



Pecten inaequalis, 52. 



(Janira) inconstans, 188. 



Lusitanicus, 189. 



oxygonus, 52. 



Thetidis, 52. 



Pectunculus acuticostalus, 53. 



