548 



I N U E X. 



nomena of thin plates of solid and 

 fluid substances exposed to polar- 

 ized light, ISl ; on the decompo- 

 sition and dispersion of light within 

 solid and fluid bodies, 401 ; on the 

 elementary colours of the spectrum, 

 in reply to M. Melloni, 489. 



Brongniart (A.) notice of the late, 

 228. 



Bronwin (Rev. B.) on the solution 

 of a particular differential equation, 

 256. 



Broolce (C.) on a remarkable magnetic 

 disturbance, 35. 



Brucia, action of nitric acid on, 392. 



Bussy (M.) on transparent and opake 

 arsenious acid, 398. 



Butyro-acetic and metacetonic acids, 

 on the identity of, 15G. 



Cacothelin, on the composition of, 

 393. 



Cadmium, on the hydrate of, 317- 



Cambridge Philosophical Society, pro- 

 ceedings of the, 141. 



Carbon, on some properties of, 76. 



Challis (Rev. J.) on the course of a 

 ray of light from a celestial body 

 to the earth's surface, 168 ; on the 

 velocity of sound, 276, 494. 



Chapman (E. J.) on a new method 

 of distinguishing the protoxide of 

 iron from the peroxide by the blow- 

 pipe, 309. 



Chlorine, on the heat disengaged du- 

 ring the combination of bodies with, 

 321, 426. 



Christianite, analysis of, 155. 



Chrysammic acid, experiments on, 

 236. 



Claudet (A.) on different properties 

 of solar radiation modified by co- 

 loured glass media, 88 ; on photo- 

 graphic phsenomena referring to the 

 various actions of the red and yel- 

 low rays on Daguerreotype plates 

 when they have been affected by 

 daylight, 199 ; on the priority re- 

 specting the discovery of the acce- 

 lerating [)rocess intheDaguereotype 

 operation, 215. 



Clouds, on an easy method of mea- 

 suring the distance and height of, 

 375. 

 Cockle (J.) on algebraic equations of 

 the fifth degree, 50 j on the method 

 of vanishing groups, 114 ; on the 



theory of equations, 351 ; on certain 

 researches of Murphy, 421. 



Cotton (Dr. R. P.) on the geological 

 age of bone-caverns, 119. 



Curaol, action of nitric acid upon, 63. 



Cyanide of mercury, on the action of 

 chlorine on, 152. 



Cymol, on the action of nitric acid 

 on, 15. 



Daguerreotype plates, on the advantage 

 of electrotyping, 541. 



Damour (M.A.) on phosphate of iron, 

 manganese and soda, 74 ; on a hy- 

 drated silicate of alumina, 149. 



Davies (T. S.) on the theory of equa- 

 tions, 351 ; on geometry and geo- 

 meters, 419. 



Dauheny's (Dr. C.) Description of Ac- 

 tive and Extinct Volcanos, of Earth- 

 quakes and of Thermal Springs, 

 notice of, 216, 297. 



De Morgan (Prof.) on the specula- 

 tions of Thomas Wrightof Durham, 

 241 ; on the additions made to the 

 second edition of the Commercium 

 Epistolicum, 446. 



Descloizeaux (M.) on christianite, 

 a new mineral, 155. 



Draper (Dr. J. W.) on the produc- 

 tion of light by chemical action, 

 100. 



Drinkwater (J.) on the preparation of 

 absolute alcohol, and the composi- 

 tion of " proof-spirit," 123. 



Dufay, objections to the theory of, 

 461. 



Dumas (M.) on the identity of meta- 

 cetonic and butyro-acetic acids, 

 156. 



Ebelmen (M.) on the artificial for- 

 mation of crystallized minerals, 

 312. 



Eclipse of October 8, 1847, observa- 

 tions on the, 144. 



Electrical insulation, on the use of 

 gutta percha in, 165. 



Electrical phsenomena, observations 

 on, 466. 



Electricity, magnetism, light and heat, 

 researches into the identity of, ] 72 ; 

 on alternating diurnal currents of, 

 at the terrestrial surface, 389 ; on 

 the disruptive discharge of accumu- 

 lated, 391. 



Equation, differential, on the solution 

 of a particular, 256, 413. 



