INDEX. 



575 



Nitrification, on spontaneous, 47. 



Oldenburg, Newton's letters to, concern- 

 ing his theory of light and colours, 

 185. 



Nitrous a:ther, preparation of, 568. 



Ornithichnites, on some, 310. 



Osmiuret of iridium, decomposition of 

 420. 



Owen (Prof.) on the Dinornis, 233 ; on 

 the osteology of the Dodo, 234. 



Page (Dr. C. G.) on the probable conduc- 

 tion of galvanic electricity through 

 moist air, 361. 



Palladium, mode of extracting, from its 

 combination with gold, 130. 



Palmic acid, researches on, 475. 



Parallel lines, on the theory of, 112. 



Payen (M.), experiments on coffee, 553. 



Pelargonium roseum, on the volatile in- 

 gredients of the, 509. 



Pelopium, on the properties of the new 

 - metal, 409. 



Peschel's Elements of Physics, reviewed, 

 229. 



Phonetics, facts and observations relating 

 to the science of, 1 83. 



Phospham and phosphamide, observa- 

 tions on, 563. 



Phosphorus, influence of electricity, pla- 

 tinum and silver on the luminosity of, 

 122. 



Picro-erythrine, on the composition of, 

 268. 



Planet, new, account of the discovery of 

 the, 511. 



Platinum, on some chemical effects pro- 

 duced by, 40. 



Plattner (C. F.) on copper blende, 149. 



Playfair (L.) on palmic acid, 475. 



Pless (II.) on pelargonic acid, 509. 



Polyhedrons, simple demonstration of a 

 remarkable proposition relative to, 442. 



Porpoise, on the blow-hole of the, 50. 



Potato, analytical investigation of the 

 disease prevalent in the, 65. 



Potter (Prof.) on the heights of the au- 

 rora borealis of Sept. 17 and Oct. 12, 

 1833, 63. 



Powell (Rev. B.) on the theory of the 

 aberration of light, 425 ; on the bands 

 formed by partial interception of the 

 prismatic spectrum, 474. 



Pring (Dr. J. H.) on the process of etch- 

 ing by means of voltaic electricity, 48. 



Pus-globules, on the origin of, 397. 



Quaternions, on, 26, 113,326. 



Rainey (G.) on the anatomy and physio- 

 logy of the vascular fringes in joints, 

 and the sheaths of tendons, 130; on 

 the cause of endosmose and exosmose, 

 179. 



Redtenbacher (Dr. J.) on the common 

 origin of the acids (CH)» 4 , 501. 



Resin, fossil, examination of a, 243. 



Respiration, on the mechanism of, 48. 



Riess (P.) on a remarkable property of 

 mica, 25. 



Rigg (R.) on the source of animal heat, 

 407. 



Robinson (Dr. G.) on some peculiarities 

 of foetal digestion, 406. 



Robinson (Rev. T. It.) on the annual mo- 

 tions of the earth's crust, 81. 



Robiquet (M.) on aloetine, 565. 



Roceella tinctoria, on the substances con- 

 tained in, 261. 



Roccellic acid, on the properties and com- 

 position of, 270. 



Ronalds (Dr. E.) on the extractive mate- 

 rial of urine, 406. 



Rose (Prof. II.) on a new metal, pelopium, 

 contained in the Bavarian tantalite, 

 409 ; observations on the new metal 

 ilmenium, 418. 



Royal Astronomical Society, proceedings 

 of the, 54, 133, 229. 



Royal Irish Academy, proceedings of the, 

 236. 



Royal Society, proceedings of the, 47, 

 128, 405. 



Ruthenium, on the chemical properties 

 of the new metal, 556. 



Sabine (Lieut.-Col.) on terrestrial mag- 

 netism, 130. 



Saturn, on the periods of the satellites of, 

 57. 



Savage (T. S.) on the desquamation and 

 change of colour in a negro of Upper 

 Guinea, 131. 



Saxby (S. M.) on the discovery of foot- 

 marks in the greensand of the Isle of 

 Wight, 310. 



Schaitgotsch (Count) on the specific gra- 

 vity of silicic acid, 416. 



Scheerer (M.) on isomorphism, 246. 



Schlieper (A.) on the action of nitric acid 

 upon cholic acid, 330. 



Schcenbein (C. F.) on some chemical ef- 

 fects produced by platinum, 40; on 

 spontaneous nitrification, 47 ; on the 

 influence exerted by electricity, plati- 

 num and silver upon the luminosity of 

 phosphorus, 122 ; on the action of hy- 

 ponitric acid upon aqueous solutions of 

 bromine and chlorine, 227. 



Schunck (E.) on the substances contained 

 in the Roceella tinctoria, 261. 



Scientific Memoirs, notice of, 247. 



Shadow, on the symbol V — 1 in geome- 

 try, 171. 



Shooting stars, on the satellitary nature 

 of, 1. 



