555 



INDEX to VOL. XX. 



on the synthesis of, 



Acetone, 



201.' 



Acetovalerianic acid, 42. 

 Acetylene, on the properties and com- 

 position of, 196. 

 Acids, bibasic, on the constitution of 



the, 48. 

 Acroleine, investigation of, 200. 

 Acrylic acid, on the formation of, 381 . 

 Actinometer, on several forms of, 50, 



406. 

 Alcohol and water, on the density of 



mixtures of, 552. 

 Alcohols, poly e thy lenic, on new, 293. 

 Aldehyde, on a new isomer of, 199. 

 Alkaloids, on new, given off during 



putrefaction, 387. 

 Alloys, on the electric conducting 



power of, 63 ; on the expansion of, 



230 ; of aluminum, on the, 377- 

 Alluard (M.) on the specific and latent 



heat of naphthaline, 488. 

 Aluminum, on alloys of, 3/7. 

 Amidobenzoic acid, researches on, 



380. 

 Ammonias, on the diatomic, 66. 

 Amyle, on the hydride of, 379. 

 Amylene, on the oxide of, 44. 

 Analysis, elementary, on a new method 



of, 518. 

 Andrews (Prof.) on the volumetric 

 , relations of ozone, 549. 

 Anisic alcohol, on the constitution of, 



294. 

 Antimony, on the presence of, in the 



beds of streams and rivers, 304 ; 



on the volumetric determination of, 



342. 

 Arsenic, on the presence of, in the 



beds of streams and rivers, 304 ; 



on the occurrence of, in coal, 408 ; 



on the alleged practice of eating, 

 550. 



Atkinson's (Dr. E.) chemical notices, 

 41, 139, 196, 290, 374, 515. 



August (F.) on a new species of stereo- 

 scopic phenomenon, 329. 



Barium, on the spectrum reaction of, 

 104. 



Barometer, on a new self-registering, 

 263. 



Bauer (M.) on the oxide of amylene, 

 44 ; on a new isomer of aldehyde, 

 199 ; on the hydride of amyle, 379. 



Baumhauer (M. von) on the density 

 of mixtures of alcohol and water, 

 552. 



Beetz (Prof. W.) on the molecular 

 changes produced bv magnetiza- 

 tion, 458. 



Benzylic alcohol, on a new homologue 

 of, 225. 



Berthelot (M.) on acetylene, 196. 



Blakiston (Capt.) on a remarkable ice 

 shower, 168. 



Books, new : — Brook Smith's Arith- 

 metic in Theory and Practice, 61 ; 

 Lunn's Treatise on Motion, 62 ; 

 Boole's Calculus of Finite Differ- 

 ences, ib. ; Pratt's Treatise on 

 Attractions, ib. ; Routh's Dynamics 

 of a System of Rigid Bodies, 533. 



Boracite, on the preparation of, 378. 



Breithaupt (Prof.) on thirteen systems 

 of crystallization in the mineral 

 kingdom, 129. 



Brewster (Sir D.) on the lines of the 

 solar spectrum, 385. 

 j Bun sen (Prof.) on chemical analysis 

 by spectrum-observations, 89. 



Burnett (C. J.) on several forms of 

 actinometer, 50, 406. 

 202 



