INDEX 
TO THE 
PHILOSOPHICAL TRANSACTIONS 
FOR THE YEAR 1854. 
A. 
Acid, nitrotoluylic, products of decomposition of, 43. 
Acids, osmose of, 225. 
Air, physical properties of, expressed according to the thermo-dynamic scale, 353; table of 
specific heats of, 363. 
Alkalies, osmose of, 225. 
Atmosphere, effect of pressure of, on the mean level of the ocean, 285. 
B. 
Bakerian Lecture, 177. 
Booth (Rev. J.). Researches on the Geometrical Properties of Elliptic Integrals, 53. 
C. 
Cayley (A.). An Introductory Memoir on Quantics, 245. 
Crystals, musical tones in, produced by heat, 7. 
D. 
Donkin (W. F.). On a Class of Differential Equations, including those which occur in Dyna- 
mical Problems. — Part I., 71. 
E. 
Elliptic integrals, geometrical properties of, 53. Quadrature of the logarithmic ellipse and 
logarithmic hyperbola, 54. On the rectification of the lemniscates, 61. On the hyper- 
bolic lemniscates, 65. 
Embryo , body and head of, produced from definite portions of yelk, 240. Axis of, correspondent 
with primary yelk-cleft, 241. 
