538 



INDEX TO VOL. XIII. 



AciDASPIS, on some species of, 

 211. 



Acids, organic, on the movements of 

 the floating crystals of some, 149 ; 

 on a new series of, containing ni- 

 trogen, 379. 



Air, on the velocities of currents of, 

 in vertical tubes, 291. 



Alcohol, action of nitric acid on, 39. 



Aldehydes, on the formation of, 188. 



Alkahes and alkaline earths, on the 

 electric conducting powers of the 

 metals of the, 81. 



Allophane, on the occuiTence of, at 

 Charlton, Kent, 76 ; on the con- 

 stitution of, 338. 



AUotropy, on the connexion of, with 

 catalytic phsenomena, 248, 440. 



Aluminium, on the manufacture of, 

 272. 



Amides, on the action of sulphuric 

 acid on the, 276. 



Ansted (Prof. D. T.) on some remark- 

 able mineral veins, 293. 



Antimony, on the atomic weight of, 

 120. 



Antrimolite of Thomson, on the, 148. 



Arenicolites S2]arsus, description of, 

 211. 



Atacamite, on a new locality for, 470. 



Atkinson (E.), chemical notices from 

 foreign journals, 118, 183, 269, 

 497. 



Aurora, on the nature of the, 510. 



Babinet (M.) on the density and the 

 mass of comets, 301 ; on the ab- 

 sorption of light in traversing 

 comets, 471. 



Barometer, on the construction of a 

 standard, 458 ; description of a 

 new, 468. 



Barrett (L.) on the distribution of the 

 MoUusca on the coast of Norway, 

 215. 



Bechamp (M.) on the action of the 

 terchloride, or terbromide of ])hos- 

 phorus in the ])reparation of the 

 chlorides and bromides of the or- 

 ganic acids, 187. 



Becquerel (M.) on the electricity of 

 the air and the earth, 296. 



Bentley (C.A.) on an improved induc- 

 tion coil, 471. 



Bernard (F.) on a . new cyanometer, 

 389. 



Bertagnini (M.) on the artificial pro- 

 duction of cinnamic acid, 183. 



Bertrand (M. J.) on Foucault's gyro- 

 scope, 31. 



Bischof's (G.) Elements of Chemical 

 and Physical Geology, reviewed, 67. 



Blood, on the circulation of the, in 

 the vessels of the iris, 517- 



Bodart (M.) on phorone and pyromu- 

 cyle, 189, 



Bodies, on equally attracting, 305. 



Boghead coal, on some products of 

 the distillation of, 134. 



Books, new : — Bischof's Elements of 

 Chemical and Physical Geology, 

 67 ; Scheerer's Introduction to the 

 Use of the Blowpipe, 70. 



Boron, on the various forms of, 273. 



Bonis (M.) on the action of caustic 

 potash on ricinoleic acid, 184. 



Boullet (M.) on the reduction of the 

 nitro-acids, 188. 



Boussingault (M.) on the assimilation 

 of nitrogen by plants, 497 ; on the 

 action of nitrates on vegetation, 

 498; on the nitrates contained in 

 the soil and in water, 499 ; on the 

 composition of the water of the 

 Dead Sea, 504. 



Brooke (J.) on the geometrical iso- 

 morphism of crystals, 373. 



Browell (E. J. J.) on the analysis of 

 waters from the Turko- Persian 

 frontier, 147. 



Brunner (M.) on the preparation of 

 artificial cryolite, 272. 



Buckton (G. B.) on the action of sul- 

 phuric acid upon the amides and 

 nitriles, 277- 



Buff (H. L.) on some compounds of 

 ethylene, 374. 



Buist (Dr.) on the occurrence of cry- 

 stallizations in stucco, 76. 



