REVIEWS. 107 



An Elementary Treatise on Heat. By Balfour Stewart, 



LL.D., F.R.S., etc. Sixth edition, revised; with additions by Robert E. 

 Baynes. Cr. 8vo, pp. xxiv. — 476. (Oxford : The Clarendon Press. 1895.) 

 Trice 8/6. 



We have here the facts and principles of the .Science of Heat. The author 

 begins with the study of well-ascertained facts, and proceeds onwards to general 

 principles. The work is divided into three parts. The first embraces the 

 study of the various effects produced by heat upon bodies ; the second contains 

 the laws which regulate the distribution of heat through space, and includes 

 radiation, conduction, convection, and the measurements of specific and latent 

 heat ; the third relates to the nature of heat, its source and connection with 

 other properties of matter. In this sixth edition articles have been added on 

 the radio-micrometer, bolometer, and steam calorimeter, and on the direct 

 determination of the specific heat of gases at constant volume. 



A Manual, OF Physics ; being an Introduction to Physical 

 Science. By William Peddie, D. Sc. , F.R. S.E. Second edition. Cr. 8vo, 

 pp. xvii. — 573. (London: Bailliere, Tindall, and Cox. 1896.) Price 7/6. 



The author intends this book to be an accompaniment to a course of lec- 

 tures on physics, by the use of which a student may largely avoid the evils of 

 note-taking, and give more attention to the words of his teacher. 



The Forces of Nature : A Study of Natural Phenomena. 

 By H. B. Harrop and L. A. Wallis. Crown Svo, pp. 159. (Columbia, Ohio, 

 U.S.A. : Harrop and Wallis. 1895.) 



The authors describe in a very simple manner The Solar System ; The 

 Atmosphere and Sound ; Chemistry and the Structure of Matter ; Radiant 

 Energy, Light, Heat, and Actinism ; Electricity and Magnetism. The illustra- 

 tions are not nearly so distinct as they should have been. 



First-Stage Mechanics. By F. Rosenberg, M.A. Cr. Svo, 

 pp. viii.— 296. (London: W. B. Clive. 1895.) Price 2/-. 



This book is designed to cover the requirements of the Elementary Stage 

 of the Science and Art Department in the Theoretical Mechanics of Solids. 

 Numerous "observations," "cautions," and illustrative examples, have been 

 given in order to prevent the student coming to a standstill when help of the 

 teacher is not available, and are intended also to provide against common mis- 

 takes. 



The Lantern and How to Use it. By C. Goodwin Norton. 

 Cr. 8vo, pp. iv. — 136. (London: Hazell, Watson^ & Viney. 1895.) i/- 



This is No. 10 of " The Amateur Photographers' Library," and treats 

 very thoroughly of the Magic Lantern, the various methods of Illumination, 

 Single, Double, and Triple Lanterns, Lantern Slides, and the management of 

 Lantern Exhibitions. There are a number of illustrations. 



Industrial Explorations. By R. Andom. With nearly one 

 hundred illustrations by T. M. R. Whitwell. Cr. 8vo, pp. xv. — 295. (Lon- 

 don : J. Clarke and Co. 1895.) Price 3/6. 



A very amusing and instructive book. The explorations take the reader 

 into Piano-land, Rope-land, Tram-land, Candle-land, Gas-land, Paper-land, 

 Soap-land, Pottery-land, Match-land, Rubber-land, Wire-land, & Sweet-land ; 

 a good account being given of the various manufactories visited. 



