472 



INDEX. 



Plants, on a property in, analogous to 

 the irritability of animals, 1 6.5. 



Polarization of heat, 134, 205, 284,366. 



Potassium, ferrocyanuret of, and dilute 

 sulphuric acid, reaction of, 97. 



Powell (Prof.) on the undulatory theory 

 of light, 16, 107, 189, 262; on the 

 repulsive power of heat, 58 ; on the 

 achromatism of the eye, 247 ; on the 

 dispersion of light, 374. 



Read (S.) on a decimal systemof mone- 

 tary calculation, 441. 



Rees (G. O.) on the presence of titanic 

 acid in the blood, 201. 



Refraction, of heat, 134, 205, 284, 366 ; 

 double, exhibited in the oxalate of 

 chromium and potash, 305. 



Reviews : — Allan's Maniial of Mine- 

 ralogy, 53; Parkes's Chemical Cate- 

 chism (I3tii edit.) by Brayley, 214; 

 the West of England Journal of Sci- 

 ence and Literature, 293. 



Rhinoceros, 151. 



Rigaud (Prof.), life of Br. Halley, 306. 



Rogers (H. D.) on the geology of 

 North America, 64. 



Royal Institution of Great Britain, 394. 



Royal Society, 55, 142, 297, 371 ; me- 

 dals for 1836 and 1837, 75. 



Rudge (E. ) on the position of the South 

 Magnetic Pole, 371. 



Salts: — insoluble, employment of in 

 analysis, 79 ; deliquescent, preserva- 

 tion of, 319 ; water as a constituent 

 of, 327,417. 



Sheep, wild, description of, 226. 



Shells, 68, 149, 387. 



Ship-sheathing, immersion of copper in 

 muriatic acid for, 444. 



Sound, on the production and propa- 

 gation of, 25. 



Sphinx ligustri, nervous system of, 55, 



Spirit-lamp furnace, new^, 292. 



Strickland (H. E.), account of land and 

 freshwater shells found with bones of 

 land quadrupeds, 149. 



Strontia and barytes, hydrates of, 52, 



Strontia, carbonate of, discovered in the 

 United States, 234. 



Sturgeon (W.) on an aurora borealis 

 seen at Woolwich, 230 ; experiments 

 in magneto-electricity, Mr. Watkins's 

 observations on, 239. 



Sturgeon, new species of, 386. 



Sugar, its conversion into formic acid 

 and ulmin, 399. 



Sulphates, action of muriate of ammo- 

 nia on, ^35. 



Sulphur, detection of minute portions 

 of, 399. 



Sulphuret of nickel, form of, 104. 



Sykes (Lt.-Col.) on the atmospheric 

 tidesand meteorology of Dukhun^ftr^ 



PRINTED BY RICHARD 



Sipignathus Acus and Ti/phle, 383. 



Telescope, zenith, twenty- five feet, 37.3. 



Teredo navalis, 55. 



Thompson (J. V.) on the metamorpho- 

 sis of the Cirripedes, 373. 



Thompson (W.) on the Teredo tinvalis 

 and Limnoria terebrans, 55. 



Thomson (J.) on the fibres of cotton, 1 70. 



Tides, atmospheric, of Dukhun, 59. 



Titanic acid, its existence in Hessian 

 crucibles, 113; in the blood, 201. 



Tonna (L.) on some curious facts re- 

 specting vision, 409. 



Torpedo, observations on the, 57. 



Tortoises, 152, 229, 380. 



Tourmaline, polarization of heat by,205. 

 205. 



Trevelyan (A.) on the vibration of 

 heated metals, 85 ; description of a 

 new spirit-lamp furnace, 292. 



Trevelyan (W. C.) on fragments of gar- 

 net in the millstone-grit, 76. 



Trigonometrical height of Inglebo- 

 rough, 248, 429. 



Trigonometrical lines, the signs of, 86. 



Tyrrell (J.) on the blood in insects, 300. 



Ulmin and formic acid, conversion of 

 sugar into, 399. 



Undulatory theory of light, 16, 107, 

 189, 262; queries respecting, 398. 



Ure (Dr.), analysis of the Moira brine 

 spring, 58, Dr. Daubeny on, 321. 



Vegetables, classification of, 379. 



Vesuvius, its eruption in 1834, 374. 



Vibration of heated metals, 85. 



Viper, of the Somersetshire Downs, 15.3. 



Vision, some facts respecting, 409. 



Voice, human, cause of the grave and 

 acute tones of, 372. 



Wollastonite and zurlite, 76. 



Water, decomposition of, 428 ; as a 

 constituent of salts, .327, 417. 



Watkins (F.) on Mr. Sturgeon's expe- 

 riments in magneto-electricity, 239. 



Westwood (J.O.) newDipterous insects, 

 280, 447; on the genus Ni/cteribia,'692. 



Wheatstone (Prof.), experiments to 

 measure the velocity of electricity, 

 and the duration of electric light, 61* 



Williams (Dr. C. J. B.) on the pro- 

 duction and propagation of sound, 25. 



Williams (Rev. D.) on bones of ani- 

 mals discovered in the calcareo-mag- 

 nesian conglomerate, 149. 



Woods (J.) on the species of Fediu, 380. 



X. on the undulatory theory, 398. 



Young (Prof.) on the summation of 

 slowly converging and diverging in- 

 finite series, 348. 



Zoological Society, 68, 150, 223, 307, 



380, 452. 

 Zurlite and wollastonite, 76. 



URT, FLLLT STRtLT. 



