602 



INDEX. 



* 



Boulder deposits near Glasgow, 528. 



Boussingault (M.) on nitro-saccharic acid, 

 94 ; on the composition of sugar of ge- 

 latin, 253. 



Bowerbank (J. S.) on moss agates and 

 other siliceous bodies, 542. 



Bowman (J. E.) on the question, Whether 

 there are any evidences of the former 

 existence of glaciers in N. Wales, 469. 



Boye (M. H.) on perchloric aether, 370. 



Brain of man, composition of the, 411. 



Brayley's (E. W.) lectures on igneous 

 meteors and meteorites, 500. 



Bremicker's comet, places of, 327; obser- 

 vations on, 577. 



Brett (R. H.) on the alleged conversion of 

 carbon into silicon, 295, 388. 



Brewster (Sir D.) on the compensations of 

 polarized light, with description of a 

 polarimeter, 158 ; on the structure and 

 optical characters of Bulinus velatus, 

 and other land shells, from the Philip- 

 pine islands, 403. 



Broderip (W. J.) on optical phenomena 

 exhibited by shells, 403. 



Brornic acid, and its salts, 48. 



Brown (Dr. S. M.) on the alleged conver- 

 sion of carbon into silicon, 388. 



Buckland (Rev. Prof.) on the agency of 

 land-snails in corroding and making 

 deep excavations in compact limestone 

 rocks, 541. 



Bulinus velatus, on the, 403. 



Burr (F.) on the geology of Aden, 174. 



Cadmium, analysis of, 100. 



Cahours (M.) on the aethereal oils, 189. 



Calculus of finite differences, new theorem 

 in the, 125. 



Callond (M.), on the action of sulphuric 

 acid on protosulphate of iron, 502. 



Calotype photogenic drawing, 88. 



Campbell (R.C.) ontheferrocyanides,513. 



Camphor, action of potassa on, 47. 



Cap (M.) on lactate of urea in urine, 

 253. 



Cape Town, on the geological phenomena 

 in the vicinity of, 531. 



Carbon, atomic weight of, 210, 332; al- 

 leged conversion of, into silicon, 295, 

 388 ; existence of, in plants, 456. 



Carbonic acid, composition of, 343. 



Chalk formation, fossil remains of turtles 

 in the, 157. 



Challis (Rev. Prof.) on the resistance of 

 the air to an oscillating sphere, 63, 229 ; 

 G. B. Airy's reply to, 143. 



Charcoal, action of ammonia on, 281. 



Cheirotherium, on the genus, 394. 



Chemical combination, quantity of heat 

 evolved in, 19, 178. 



Chemical rays of light, polarization of 

 the, 52. 



Chemical Society of London, 328. 



Chemical statics of organized brings, on 

 the, 337, 456. 



Chemistry : — on the spontaneous evolu- 

 tion of sulphuretted hydrogen in the 

 waters on the western coast of Africa, 

 1, 8 ; on the decomposition of sul- 

 phates by vegetable matter, 11,235; 

 on the quantity of heat evolved in che- 

 mical combination, 19, 178, 183 ; ac- 

 tion of peroxide of lead on cinnamic 

 acid and salicine, 38 ; action of high 

 temperature on mellitate of ammonia, 

 41 ; products of the action of nitric acid 

 on naphthalin, 45 ; action of potassa 

 on camphor, 47 ; composition of guano, 

 49 ; process for obtaining hydrobromic 

 and hydriodic acids, 92 ; on a new 

 alum, 93 ; on the supposed hydrate of 

 phosphorus, 93 ; on some electro-ni- 

 trogurets, 97 ; analyses of cadmium 

 and copper, 100 ; experiments with 

 muriatic acid, 181 ; preparation of urea, 

 184; arseniuretted hydrogen, 185 ; 

 salts of lead formed by nitrous and hy- 

 ponitrous acids, 186 ; oil of turpentine, 

 187 ; on the aethereal oils, 189 ; cumi- 

 nol, ib. ; cymen and retynil, 190 ; ac- 

 tion of potassa on indigo-blue, 191 ; on 

 the products of the decomposition of 

 chloride and bichloride of isatin, 192 ; 

 on catechin and pyrocatechin, 194; on 

 the atomic weight of carbon, 210, 332 ; 

 tartrate of lead, 226 ; on the produc- 

 tion of sulphuretted hydrogen, 235 ; on 

 the action of sulphuric acid on nitrate 

 of ammonia, 251 ; preparation of azotic 

 gas, 252 ; new mode of concentrating 

 nitric acid, 253 ; composition of the 

 sugar of gelatin, ib. ; lactate of urea in 

 urine, ib. ; new method of determin- 

 ing nitrogen, 278 ; nitrurets, ib. ; action 

 of ammonia on glowing charcoal, 281 ; 

 new mode of forming prussic acid, ib. ; 

 double cyanurets of zinc, 282 ; on the 

 stibio- and arsenio-sulphurets, 283, 284 ; 

 on the conversion of carbon into silicon, 

 295, 388 ; malic acid and the malates, 

 306; fumaramide, 313; on a new me- 

 thod of preparing hydrochloric acid, 

 328 ; mode of analyses of copper ores, 

 330 ; on artificial arragonite, ib. ; sili- 

 cification of limestones, 332 ; lactic 

 acid and lactates, 333 ; preparation of 

 formic aether, 334; of iodate of potash, 

 ib. ; on the chemical statics of organized 

 beings, 337 ; composition of water, 343 ; 

 of carbonic acid, 343; ofammonia, 344; 

 of air, ib. ; on the atmosphere of mines, 

 357 ; on pe/chloric aether, 370 ; paracy- 

 anogen, 391 : composition of the brain 

 of man, 411 ; on the action of peroxide 



