5G"2 



INDEX to VOL. XXI. 



ACARI, production of, 61, 64, 312. 



Acids : — anisic, 16 ; anisonitric, 17 ; me- 



lasinic, ib. ; umbellic, ib. ; badianic, 18; 



cyminic, ib. ; cumino-cyminic, ib. ; 



uvic, ib. ; sulpho-hyposulphurous, 20 ; 



sulphurous,21; oxichloric, 157; stearo- 



phanic, 161 ; formic, 236; laurostcaric, 



238 ; ferrocyanic, 325 ; hippuric, 382 ; 



phosphoric, 379 ; opianic, 449 ; indi- 



gotic, 450 ; salicylic, ib. 

 Addison, (W.) on the mode of formation 



of the air-cells of the lungs, 51 . 

 Agriculture, use of sulphate of ammonia 



in, 488. 

 Air-cells of the lungs, on the mode of 



formation of the, 51. 

 Aluminates, on the analysis of native, 78. 

 American Philosophical Society, proceed- 

 ings of the, 150. 

 Ammonia, use of the sulphate of, in agri- 

 culture, 488. 

 Ammonites, on the mouths of, 546. 

 Analytic geometry, on a theorem in, 1 76. 

 Anatase, on the optical constants of, 277. 

 Andesine, notice respecting, 74. 

 Animals, minute anatomy of, 107, 168, 



241. 

 Anisic acid, 16. 

 Antimony, presence of in arsenious acid, 



238. 

 Apjohn (Dr. J.) on the force of aqueous 



vapour within the range of atmospheric 



pressure, 389. 

 Ashby (J. E.) on tbe use of iron wire for 



secondary electro-magnetic coils, 411. 

 Atmosphere, on the transparency of the, 



223. 

 Atmospheric pressure, influence of the 



moon on, 227. 

 Atomic weights, revision of the, 279, 409. 

 Aurora borealis, remarks on, 52. 

 Awdejew (M.) on glucinium and its 



compounds, 284. 

 Baily (F.) on the mean density of the 



earth, 111. 

 Balmain (W. H.) on a new process for 



preparing oxygen, 42 ; on compounds 



of boron and silicon with nitrogen and 



certain metals, 270. 

 Barometrical observations, 222. 

 Barry (Dr. M.) on fibre, 220; on the 



structure of muscle, 351. 



Bases, formula for eliminating the weights 

 of mixed, 188. 



Batteries, constant, employment of ni- 

 trate of soda for, 61. 



Battery, on a new form of, 311. 



Becquerel (E.) on the constant voltaic 

 battery, 329 ; on the electro-chemical 

 properties of simple bodies, and on their 

 application to the arts, 404. 



Birds, on the structure of fibrinous exu- 

 dations in, 244. 



Blood-corpuscles, on the nuclei of the,107. 



Blood, on the pus-like globules of the, 168. 



Bone-bed in the lower lias near Tewkes- 

 bury, 540. 



Booth (J.) on the rectification and qua- 

 drature of the spherical ellipse, 54 ; on 

 a theorem in analytic geometry, 1 76, 

 444. 



Bowerbank (J. S.) on organic tissues in 

 the bony structure of the Corallidae, 53. 



Bremicker's comet, observations on, 59. 



Brewing, observations on, 317. 



Brewster's (Sir D.) deductions from the 

 hourly observations at Leith, remarks 

 on, 43 ; on the absorption of light and 

 the colours of thin plates, 208. 



Brodie (Rev. P. B.) on the occurrence of 

 plants in the plastic clay, 546. 



Budan's criterion for the imaginary roots, 

 on the extension of, 96. 



Cadmium, on some salts of, 355. 



Cahours (M.) on the oils of fennel, anise 

 and star-anise, 15. 



Calomel, non-conversion of, into sublimate 

 by the alkaline chlorides, 411. 



Calvert (F. C.) on the preparation of 

 quina and cinchonia, 171. 



Cambridge Philosophical Society, pro- 

 ceedings of the, 485. 



Cerium and its salts, on, 278. 



Chalk of the Brighton chffs, analysis of, 

 379. 



Challis (Rev. J.) on the rectilinear mo- 

 tion of fluids, 101, 297, 423. 



Chemical rays, on a new class of, 453. 



Chemical Society, proceedings of the, 313, 

 378. 



Chemistry : — oils of fennel, anise and 

 star-anise, 15 ; action of chromic acid 

 on volatile oils, 17 ; action of hydrate 

 of potassa on hydro-benzamide, 18 ; 



