559 



INDEX to VOL. XXV. 



Absorption, on the laws of, 331. 



Acetyle, on the bisulphide of, 216. 



Aerolites, notices of, 146, 437. 



Airy (G. B.) on the difference in the 

 properties of hot-rolled and cold- 

 rolled iron in retaining induced 

 magnetism, 151 ; on the forms of 

 lenses proper for the negative eye- 

 pieces of telescopes, 155. 



Akin (C. K.) on the compressibility 

 of gases, 289. 



Allen (O. D.) on caesium and rubi- 

 dium, 189; on the equivalent and 

 spectrum of caesium, 196. 



Alpine valleys and lakes, on the forma- 

 tion of, 81. 



Altitudes, on the measurement of, by 

 means of the temperature at which 

 water boils, 29. 



Alumina and copper, on a hydrous 

 silico-phosphate of, 112. 



Amygdaloid rocks, on the origin of, 

 491. 



Amylene, on the synthesis of, 217- 



Angstrom (A. J.) on a new method of 

 determining the thermal conducti- 

 bility of bodies, 130. 



Antimony, on the properties of electro- 

 deposited, 479. 



Atkinson (Dr.E.), chemical notices by, 

 210, 536. 



Attfield(J.)onthe spectrum of carbon, 

 233. 



Ball (J.) on the formation of alpine 

 valleys and lakes, 81. 



Beilstein (M.) on the synthesis of 

 propylene and amylene, 217; on 

 the spectrum of phosphorus, 542. 



Benzophenone, researches on, 539. 



Benzoyle, on some reactions of hy- 

 dride of, 522. 



Beryl, on the pressure cavities in, 

 174. 



Bismuthic silver, on the constitution 

 of, 104. 



Books, new : — Birks on Matter and 

 iEther, 300 ; Watts's Dictionary of 

 Chemistry, 473 ; Byrne's Dual 

 Arithmetic, 475. 



Boole (Prof. G.) on the theory of 

 probabilities, 313. 



Brewster (Sir D.) on the pressure 

 cavities in topaz, beryl, and diamond, 

 174 ; on the polarization of light by 

 rough and white surfaces, 344. 



Brodie (Prof. B. C.) on the oxidation 

 and disoxidation effected by the 

 alkaline peroxides, 489. 



Bunsen (Prof.) on the preparation of 

 rubidium, 212. 



Burgess (J.) on the measurement of 

 altitudes by means of the tempera- 

 ture at which water boils, 29. 



Caesium, observations on, 189 ; on 

 the equivalent and spectrum of, 196. 



Callan (Prof. N. J.) on an induction 

 coil of great power, 413. 



Calorific conductibility of solids, ex- 

 periments on the, 63. 



Camphor, on the motions of, towards 

 the light, 38, 114,342,492. 



Canonic roots of a binary quantic, 

 theorems relating to, 206, 453. 



Carbon, on the spectrum of, 233. 



Caventou (M.) on crotonylene, 543. 



Cayley (A.) on a tactical theorem, 59 • 

 on a theory relating to surfaces, 61 ; 

 on a theorem relating to a tri- 

 angle, line, and conic, 181 ; on 

 theorems relating to canonic roots 

 of a binary quantic, 206; on 

 the stereographic projection of the 



