842 
INDEX. 
N. 
Nebulae, observations on, 499. Account of the great telescope of the Earl of Rosse, ibid. 
Nerves, experiments on the section of, and observations of the alterations produced thereby in 
the structure of their primitive fibres, 423, 
Nitraniline, action of bromide of ethyl upon, 110. 
Nitrogenated principles of vegetables, on the, as the sources of artificial alkaloids, 47. Phaseolus 
communis, 48. Linum usitatissimum, 53. Wheat, 54. Peat, ibid. Distillation of wood, 55. 
Formation of organic bases from the nitrogenated principles of vegetables and animals by 
means of alkaline lye, 56 ; by sulphuric acid, 57 ; by putrefaction, 57-59. Guano, 57. 
Bases from Lycopodium, 59. Bases from Pteris aquilina. 
Notation, on a system of, for the teeth in Mammalia, 481. 
O. 
Observatories, British Magnetic, 201. 
Octodon Degus, on the dental tissues of, 555. 
Oils, on the, produced by the action of sulphuric acid upon various classes of vegetables, 467. 
Furfuramide, ibid. Furfurol, ibid. Double chloride of furfurine and platinum, 470. 
Nitrate of furfurine, ibid. Fucusol, 471. Fucusamide, 473. Thiofucusol, ibid. Pyrofu- 
cusol, 474. Fucusine, ibid. Nitrate of fucusine, 475. Nitrate of furfurine, 476. Muriate 
of fucusine, 477. Double platinum salt of, ibid. Oxalate of, ibid. Oil from Moss, Lichens 
and Ferns, 478. Opake crystals of nitrate of furfurine, 480. 
Optic nerve, development of, 189. 
Oscillations of floating bodies, 609. 
Owen (Professor R.). On the Development and Homologies of the Molar Teeth of the Wart- 
Hogs {Pliacoclicerus), with Illustrations of a System of Notation for the Teeth in the Class 
Mammalia, 481. 
. On the Communications between the Cavity of the Tympanum and the 
Palate in the Crocodilia, 521. 
P. 
Paget (Professor James). Observations on the Freezing of the Albumen of Eggs, 221. 
Pelorosaurus Conybearii, a gigantic fossil reptile, description of its remains, 379. Indications of, 
in the Oolitic strata, 384. 
Phacochoerus, or Wart-Hogs, on the development and homologies of the molar teeth of, 481. 
Phenyl-alcohol, its action upon aniline, 97. 
Photography as a means of automatic registration, 83. 
Physical and Vital Forces, on the mutual relations of, 727. 
Plates, wrought-iron, on the strength of, 677. 
Potash, salts of, diffusion of, 25. 
Pyrofucusol, 474. 
R. 
Rain, fall of, in India, 352-367. 
Rainey (G. Esq.). On the Structure and Use of the Ligamentum Rotundum Uteri, with some 
observations upon the changes which take place in the Structure of the Uterus during Ges- 
tation, 515. 
