5^6 



INDEX TO VOL. XXXV. 



Acids : — carbo-benzoic,73; molyb- 

 dic, 75 ; alizaric, 212 ; pyro-aliza- 

 ric, 215; rubiacic, 216; sulphani- 

 lic, 237 ; stearic, ib. ; melissic, 247 ; 

 palmitic, 250. 



Airy (Prof.) on instruments adapted 

 to the measure of small meridional 

 zenith distances, 294 ; on an in- 

 strument for performing arithmeti- 

 cal divisions and multiplications, 

 521. 



Albite, analysis of, 484. 



Algebra, on a new system of imagi- 

 naries in, 133; on quadruple, and 

 equations of the fifth degree, 434, 



Alizaric acid and salts, 212. 



Alizarine, on the properties and com- 

 position of, 210. 



Alkaloids, on the nitrogenous princi- 

 ples of vegetables as the sources of, 

 534. 



Altain (M.) on gold in certain mines 

 of the department of the Rhone, 

 309. 



Ammonia, on the quantity of, in at- 

 mospheric air, 318. 



Anharmonic ratio, observations on, 

 165. 



Animals, on the inorganic constitu- 

 ents of, 9 ; on the structure of the 

 dental tissues of marsupial, 540. 



Arkansite and Brookite, identity of. 



Arsenic, on the state in which it exists 

 in the deposit from mineral waters, 

 465. 



Ashes of organic substances, on the 

 analysis of, 1, 15, 309. 



Asturias, on the geological structure 

 of the, 34. 



Atmosphere, on the amount of am- 

 monia contained in the, 318. 



Attraction, on the universal law of, 

 234. 



Aurora borealis, of Nov. 17, 1848, 

 account of the, 69; of Feb. 22, 

 1849, observations on the, 71. 



Aurorae boreales, on the cause of, 446. 



Balsam of Peru, experiments on, 72. 



Barreswil (M.) on the chemical na- 

 ture of the egg, 158. 



Bartenbach (M.) on gold in certain 

 mines of the department of the 

 Rhone, 309. 



Becquerel (M.) on the development 

 of electricity in the act of muscular 

 contraction, 53. 



Beechey (Capt. F. W.) on the tides 

 of the English Channel, 149. 



Beke (C. T.) on the sources of the 

 Nile, 99. 



Bell's (W.) instrument for perform- 

 ing arithmetical multiplications and 

 divisions, description of, 521. 



Beswick (S.) on a method for com- 

 puting magnetic declination, 511. 



Bile, on the inorganic constituents of 

 the, 278. 



Birt (W. R.) on the production of 

 lightning by rain, 16 1. 



Blondeau (M. C.) on the natural 

 sources and new mode of preparing 

 sulphuric acid, 467. 



Blood of the ox, analysis of the ash 

 of the, 185. 



Bodies, on the inorganic constituents 

 of organic, 1, I7l, 27l ; on some 

 facts relative to the spheroidal state 

 of, 60 ; on the vibratory movements 

 of magnetic and non-magnetic, 422. 



Boltonite, analysis of, and observa- 

 tions on, 462. 



Bond (Prof.) on the appearance of 

 Saturn's ring, &c. in* the equato- 

 real of Cambridge, United States, 

 519. 



Bonjean (M.) on glairine, 75 ; on 

 glairidine, 78 ; on zoi'odine, ib. 



Bontemps (G.) on some modifications 

 in the colouring of glass by metallic 

 oxides, 439. 



Books, new : — ^Thompson's Introduc- 

 tion to Meteorology, 225 ; Gal- 

 braith's Edition of Ainslie's Trea- 

 tise on Land-Surveying, 293. 



Boracic acid, influence of, upon vitri- 

 fication, 479. 



Boutigny (P. H) on some facts rela- 



