INDKX. 4^5 



Astronomical and nautical collections, 145-165, 412-426. 

 Athens, observations on certain columns at, 204-206. 

 Atmosphere, nature of, 11 — observations on the passase of light 



through, 12-25— temperature of, how far aifected by the 



great eclipse of September 7, 135-137. 



Bacon (Lord), requisites of, for secret writing, 89 — observa- 

 tions thereon, 90, 91. 



Balsams of Peru and Tolu, identity of, ascertained, 28 — how 

 obtained, ibid. 



Barry (Mr. Thomas), evidence of, with remarks, in the cause 

 of Severn and Co., against the Imperial Insurance Company, 

 334, 335. 



Baryta^ test for, 189. 



Bateau roulant, experiments with, 449, 450, 



Bauer (Francis) experiments of, on the fungi which impart the 

 colouring matter to red snow, 395, 396. 



Bengal, black varnish how prepared at, 315, 316. 



Benzoic acid found in the Tonquinbean and in melilot, 173. 



Berz6/tMS (M.) observations of, on fero-prussiates, 179, 180. 



Biliari/ calculus, of extraordinary size, account of, 86-88. 



Black Prince, silver coins of, discovered, 474. 



Boracic acid, analysis of, 196. 



Bostock (Dr.) evidence of, with remarks, in the cause of Severn 

 and Co, againstthe Imperial Insurance Company, 345-347. 



Botany, science of, promoted by the labours of Tournefort and 

 Ray, 53, 54. 



Bramah (T. Esq.), evidence of, in the cause of Severn and Co., 

 against the Imperial Insurance Company, 337. 



Brande (W. T. Esq.), outline of his course of lectures on 

 chemistry, 215, 216 — observations on the analysis of mine- 

 ral waters, 217-230 — on the analysis of rhubarb, 288-292 

 —abstract of his evidence, with remarks, in the cause of Se- 

 vern and Co., against the Imperial Insurance Company, 

 330, 331. 



Bridges by suspension, on the application of the catenarian 

 curve to, 230-235. 



Bronchocele, remedy for, 191, 192. 



Broughton (S. D. Esq.), observations and experiments by, illus- 

 trative of the influence of the eighth pair of nerves over the 

 organs of respiration and digestion, 29'-4-314. 



Brownrigg (Dr.), on the effects of salt as a manure, 56, 



Buffon, anecdote of, 55. 



Co/cmZus (biliary) extraordinary, account of, 86-88 

 Cantharadin found in the potato-fly, 457. 

 Cape of Good Hope, vines of, ravaged by insects, 64 — salt re - 

 commended as a preventive, 65. 



