310 Book Notices. 
VII. BOOK NOTICES, 
1. Heat considered as a mode of Motion: being a course of twelve 
lectures delivered at the Royal Institution of Great Britain in the sea- 
son of 1862; by Joun Tynpatt, F.R.S., &c., Prof. of Nat. Phil. in the 
Royal Institution. With illustrations. New York: D. Appleton & 
Co. 1863. 12mo, pp. 480.—This book is destined to become a classic 
in the literature of science. With all the skill which has made Farada 
Banks’s house on the 9th of March, 1799, to this time, have made its 
name illustrious. Young, Davy, Faraday, Tyndall, in physical science, 
mand- 
ing interest. In them Davy first expounded the philosophy of flame, 
and gaseous forms of matter; to expansion and combustion; to speci 
and latent heat; and to calorific conduction 
Th 
te 
e remaining five lectures treat of radiant heat: the interstellar 
ion through th : 
lations of radiant heat to ordinary matter in its several states of 5 a <a 
. . - Be . : the 
sun; the possible sources of his energy; the relation of this energy to 
terrestrial forces and to vegetable and animal life. ae, 
~The author rises to the level of these questions from a basis so ele- 
mentary, that a person possessing any imaginative faculty and power 
“of concentration can accompany him. : wee. 
commenced in the present 
to induce all who feel an interest in this m 
up by Dr. Tyndail’s “ Heat as a mode of Motion,” 
