

IN DEX. 



Dovorum characteres, 11; History of 

 British Perns, reviewed, S16. 



<>_ill>v, Mr., characters of a new Squirrel, 

 62. 



Olfers, If. von, on a new species of fossil 

 Dolphin, 1 50. 



Ophiocoma, new ipeciea of, '.'i'. 



Opossums, notes i>n the habits of, 343. 



Orchidaces, characters of tome new spe- 

 cies of, 1 1 



Orkney Natural Historj Society, proceed- 

 ing! of, i ;;7. .;<>•). 



Osborne, J., on Aristotle's History of 

 Animal-. ■'<■> 9. 



Otter, descriptions of four new species of, 

 27. 



Otters of Guiana, on the habits of the, 2S2. 



Owen, rr.it'.. on the application of the mi- 

 croscope to the determination of fossil 

 remains, 65 ; on the hone of an un- 

 known Struthious bird, of large size, 

 from New Zealand, ICG. 



Papilionaceae, on the irregular form of the 

 flowers of, 153. 



Patella, new species of, 108. 



Patterson, R., on the Bolina Hibernica, 67. 



Peccari, 401. 



Pelexia, new species of, 116. 



Perameles, new species of, 150. 



Perideraea, characters of the new genus, 

 39. 



Pfeiflfer, Dr. L., on the family Helicidae, 

 and description of a new genus, 238. 



Phlceomys, new species of, 58. 



Phlycta>nodes, characters of the genus, 20. 



Phoracantha, remarks on the genu*, 19. 



Pinus Pumilio, observations on, 147. 



Pithanotes, new species of, 15. 



Planaria vittata, description of, 248. 



Plants, collected in Southern Spain and 

 Portugal, synopsis of the, reviewed, 38 ; 

 on the organs of secretion of, 49 ; on the 

 development of the vascular tissue of, 

 06 ; descriptions of some new Brazilian, 

 132 ; on the structure of the ovule in, 

 162; on the sexes of, 226; notes on 

 some viviparous, 297. 



Pleurothallis, new species of, 115. 



Pleurotoma, new species of, 107. 



Polycera, new species of, 92. 



Polygastrica, Mr. Forbes on, 3G4. 



Polygonum viviparum, mode of reproduc- 

 tion in, 298. 



Polynoe scolopendrina, description of, 307. 



Polype, on a remarkable Hydroid, 309. 



Potamogeton Praelongus, 422. 



Potos caudivolvulus, on the habits of, 29. 

 Pteroglossus, new species of, 59. 

 Quekett, E. J., on the development of the 

 vascular tissue of plants, 66 ; on a cer- 

 tain crystalline matter found on the 



recently eul wood of the Red Cedar, 

 LSI. 

 Elanunculacese, on the structure of the 



ovule ill the, 1 <).">. 



Reptiles, Cuban, on the habits of the, 

 10S. 



Rhagiomorpha, tiew species of, 21. 



Khogmus, description of the new genu 

 323. 



Rissoa, new species of, 97, 107. 



Rodent, on a new species of, 57. 



Rodentia, Waterhouse on, 418. 



Rodriguezia, new species of, 116. 



Ross and Dickson, on a collection of birds 

 from Erzeroom, 350. 



Royal Irish Academy, proceedings of, 67, 

 358. 



Rylands, T. G. R., on Aspidium lobatum, 

 356. 



Sceleocantha, new species of, 14. 



Schleiden, Prof. M. J., on the structure 

 of the cellular membrane in Mosses and 

 Hepaticae, 73; on the structure of the 

 ovule in plants, 162. 



Saxifraga cernuosa, mode of reproduction 

 in, 298. 



Schomburgk, R., account of his expedition 

 into Guiana, 29, 282, 343, 399 ; on the 

 Curata, of the culm of which the Indians 

 form their blow-pipe, 46 ; on the Snake- 

 nut tree of Guiana, 202. 



Schuckard, W. E., monograph of the Do- 

 rylidas, 188, 258, 315,396. 



Scrophularia aquatica, remarks on, 1. 



Shells, a Manual of the British Land and 

 Freshwater, review of, 288. 



Selby, P. J., on the effects produced upon 

 animal and vegetable life by the winter 

 of 1838, 334. 



Snake-nut, notice respecting the, 70 ; de- 

 scription of the tree, 202. 



Society, Microscopical, 415. 



Spiral cells, occurrence of in the seeds of 

 Acanthaceae, 135. 



Squirrels, on two new species of, 62. 



Staphylinorum, Genera et Species, auct. 

 G. F. Erichson, reviewed, 127. 



Stelis, new species of, 115. 



Stemoptera, characters of the new genus, 

 134. 



Stenoderus, new species of, 21. 



Stevens, C. A., on Scrophularia aquatica, 

 1. 



Stickleback, on the nests of the fifteen- 

 spined, 148. 



Taylor, T., on the Fungi of the North of 

 Ireland, 3. 



Tessaromma, descriptions of some new spe- 

 cies of, 20. 

 Templeton, J., catalogue of the species of 

 Fungi of the North of Ireland, 3. 



