552 



INDEX to VOL. XXXL 



ACETYLENE, researches on, 456. 



iEther, on the resistance, elasticity, 

 and weight of solar, 210. 



Alcohol, on the compounds of, with 

 water, 137. 



Astronomical prolusions, 52, 287. 



Athanase (M.) on the law of union of 

 simple substances, and on attrac- 

 tions at small distances, 548. 



Atkinson (Dr. E.), chemical notices 

 by, 137, 306, 451. 



Atmosphere, on the diminution of 

 direct solar heat in the upper re- 

 gions of the, 104, 261. 



Barytine, on some crystalline forms 

 of, 179. 



Baudrimont (M.) on white phospho- 

 rus, 144. 



Bauer (M.) on benylene, 455. 



Bauerman (H.) on the copper-mines 

 of the State of Michigan, 482. 



BeketofF (M.) on the displacement of 

 some elements by others, 306. 



Benylene, on the preparation and 

 properties of, 455. 



Benzenic acid, on the preparation and 

 properties of, 453. 



Berthelot (M.) on acetylene, 456. 



Birds, on the functions of the air-cells 

 and the mechanism of respiration 

 in, 230. 



Books, new : — Walton's Mathemati- 

 cal Writings of D. F. Gregory, 7G ; 

 Pratt's Treatise on Attractions, 144. 



Boron, on the forms of graphitoidal, 

 397. 



Brewster (Sir D.) on the bands formed 

 by the superposition of paragenic 

 spectra, 22, 98. 



Briot (M.) on the measurement of 

 small forces by means of the pen- 

 dulum, 160. 



Broughton (J.) on some properties 



of soap-bubbles, 228. 

 Browne (G. F.) on ice-caves, 82. 

 Calculus of variations, on the solu- 

 tion of a problem in, 218, 425. 



Calorescence, researches on, 386, 435. 



Cambridge Philosophical Society, 

 proceedings of the, 78, 230, 315. 



Carius (M.) on a new saccharine sub- 

 stance from benzole, 452. 



Caron (M.) on the occurrence of nio- 

 bium and tantalum in a tin ore, 

 142. 



Cartesian ovals, on the focal theory 

 of, 52, 287, 380. 



Cay ley (Prof.) on a new theorem on 

 the equilibrium of four forces act- 

 ing on a solid body, 78. 



Cazin (A.) on the expansion of satu- 

 rated vapours, 163. 



Challis (Prof.) on hydrodynamics, 

 33 ; on the solution of a problem 

 in the calculus of variations, 218; 

 on the motion of a small sphere 

 acted upon by the undulations of 

 an elastic fluid, 343 ; on the fun- 

 damental ideas of matter and force 

 in theoretical physics, 459. 



Chances, on some problems in, 170. 



Chapman (Prof. E. J.) on some mi- 

 nerals from Lake Superior, 176. 



Chemical notices, 137, 306, 451. 



Clarke (Capt. A. R.) on the figure of 

 the earth, 193. 



Clausius (Prof.) on the determination 

 of the disgregation of a body, and 

 on the true capacity for heat, 28. 



Coal, on the conditious of the deposi- 

 tion of, 158. 



Colour-disease, on the doctrine of, 

 85. 



Cooke (J. P.) on the construction of 



