r,4G 



INDEX. 



Baryta, alloxanate of, 233. 



Barytes, method of distinguishing from 



strontian and lime, 78. 

 Basalt, method of distinguishing from 



trap, 237. 

 Basilosaurus, on the discovery of the, 



302. 

 Eecquerel (M.) on the phosphorescent 



power of electrical light, 394. 

 Beke (C. T.) on the alluvia of Baby- 

 lonia and Chaldaea, 4'26. 

 Berengelite, on the composition of, 89. 

 Berzelius (M.) on a new metal, 390. 

 Bessel (Prof.), letter from, to Sir J. 



Herschel, 68, 226. 

 Bevan (B.). notice of the late, 380. 

 Bichloride of platinum, action of acetone 



on, 84. 

 Bird (Dr. G.) on some of the products 

 obtained by the reaction of nitric acid 

 on alcohol, 324. 

 Birt (W. R.). observations on the shoot- 

 ing stars of Nov. 12, 1838, 39. 

 Blood, on the motion of the, 496. 

 Bonnycastle(Prof.C.),experimentsmade 

 to determine the depth of the sea by 

 the echo, 538. 

 Botany ; — on the respiration of plants, 

 73; on the distribution of plants in 

 Colombia, 102 ; on the composition of 

 wax from Ceroxylon andicola, 155 ; on 

 the absorption of azote by plants during 

 vegetation, 237; on the influence of na- 

 tive magnesia on the germination and 

 fructification of vegetables, 238 ; on 

 the formation of alkaline and earthy 

 bodies in plants, 305 ; on the anatomi- 

 cal and physiological nature of ergot 

 in certain grasses, 461; on the anatomy 

 of the roots of Ophrydeae, 462. 

 Bottger (M.) on the separation of phos- 

 phorus from its oxide, 544. 

 Boussingault (M.) on the absorption of 

 azote by plants during vegetation, 237. 

 Bowditch (Dr. N.), notice of the late, 



63. 

 Braconnot (M. ) on a method of distin- 

 guishing trap from basalt, 237. 

 Brewster (Sir D.) on the colours of 



mixed plates, 191. 

 Buchner (M.) on the properties of aco- 

 nitic acid, 76; on the separation of 

 copper from arsenic, 78. 

 Cahours (M. A.) on the composition of 



the oil of potatoes, 156. 

 Carbon, preparation of the dichloride of, 



473. 

 Carson (J.) on the motion of the blood, 



496. 

 Cnmnpeits(a), on the suspected variability 



of, 528. 

 Centauri («), on the parallax of, 316. 



Ceroxylon andicola, on the composition 



of the wax from, 155. 

 Chabasie, on the formulae representing, 



46. 

 Chaldaea and Babylonia, on the alluvia 



of, 426. 

 Chalk and strata below the chalk, on the 

 drift from the, in the counties of Nor- 

 folk, Suffolk, Essex, &c., 50. 

 Charters ( Capt.) on the geology of South 



Africa, 510. 

 Chirotheriuni, account of the footsteps 



of, 148, 150. 

 Cinchonia, on the non-existence of the 



carbonates of, 392. 

 Cissampelin, discovery of, 397. 

 Coal mines, chemical examination of the 



fire damp from, 1. 

 Coathupe (C. T.), experiments on the 

 products of respiration at different pe- 

 riods of the day, 401. 

 Colin (M.) on the respiration of plants, 



73. 

 Colombia, geographical features of, 10, 



95, 179 ; on the productions of, 99. 

 Colours, on the effects of the juxtaposi- 

 tion of, 331 ; on the theory of acci- 

 dental, 337, 439. 



of mixed plates, observations on 



the, 191. 

 Comet of 1472, curious account of the, 



260 ; Encke's observations of, 529. 

 Constable (J. C.) on the use of ammonia 



in fixing photographs, 474. 

 Cooper (J. T. ) on hydrocyanic acid, 1 86; 

 on a hydropneumatic baroscope, 361 ; 

 on the visibility of certain rays beyond 

 the red rays of the solar spectrum, 502. 

 Copal, fossil, on the composition of, 87. 

 Copper, on the separation of from arse- 

 nic, 78. 

 Crossley (S.) on a pneumatic telegraph, 



236, 317. 

 Crystallization, on a new theory of, 216. 

 Crystals, on analytic, 19. 

 Cunningham (J.) on the footsteps of the 

 Cheirotherium, 148; on impressions 

 and casts of rain in the quarries of 

 Storeton Hill, Cheshire, 507. 

 Curves, on rolling, 152. 

 Cuvier (Fr.), notice of the late, 66. 

 Cygni (61), determination of the parallax 



of, 68. 

 Darwin (C.) on the parallel roads of 

 Glen Roy, 361 ; on the formation of 

 mountain chains and volcanoes, 502. 

 Daubeny (Prof.) on the composition of 

 asaltfromamineral spring. New South 

 Wales, 301. 

 Davy (Dr. J.) on the male organs of some 



of the cartilaginous fishes, 363. 

 Delvauxene, analysis of, 474. 



