REVIEWS. 211 



The Ores of Heaven, or Planetary and Stellar Worlds. By 



O. M. Mitchell, A.M. ; pp. VIII. — 304. (London : George Routledge 

 and Sons. ) 



Gives us a popular exposition of the Great Discoveries and Theories of 

 Modern Astronomers ; it is pleasantly written and well illustrated. 



Education a Science. By Alexander Bain, L.L.D., Pro- 

 fessor of Logic in the Universities of Aberdeen ; Fifth edition, pp. XXVII. — 

 453. (London : Kegan Paul, Trench, and Co., 1S85.) 



The Author of the book before us, another of the " International 

 Scientific Series," views the art of teaching as far as possible from a scientific 

 point of view ; thus, in the opening chapters the opinions of many of our great 

 scientists are considered. We then have the subject of Education viewed in 

 connection with Physiology and of Psychology. That five editions of this 

 work have been called for in a comparatively short time, proves the esteem 

 in which it is held. 



Science in Song, or Nature in Numbers. By William Richards, 

 A.M., Ph.D., pp. XIL— 131. (Boston : Lee and Shepard, 1885.) 



In the little book before us the Author attempts to give us the various facts 

 and principles of Science in Verse. Some of the subjects so treated being 

 Steam, Electricity, the Spectroscope, Magnetism, the Telescope, &c. 



School-Keeping, and How to do it. By Hiram Orcutt, LL.D. ; 



pp. 244. (Boston: N. E. Publishing Company, 1885.) 



The Author's design in publishing this book is first, to aid and encourage 

 those who need and would profit by the experience of others ; and secondly, 

 to awaken an interest in the subject. It is divided into seven chapters, viz. — 

 Theory and Practice, How to Begin, Plow to Govern, How to Teach, Physical 

 Culture, Morals and Manners, and Temperance in Schools. 



Lessons on Elementary Practical Physics. By Balfour 



Stewart, M.A., LL.D., F.R.S., and W. W. Haldane Gee. Vol. i. General 

 Physical Processes, pp. XVI. — 291. (London : Macmillan and Co., 1885.) 



The volume before us is the first of a series, to be shortly followed, it is 

 hoped, by one on Electricity and Magnetism, and the third on Heat, Light, 

 and Sound. The present work is divided into a series of lessons, each one of 

 which being as a rule descriptive of something to be done in a definite manner 

 with definite apparatus. The Authors have endeavoured to render their des- 

 criptions as clear as possible, making but a limited use of technical words. 



A Popular Exposition of Electricity, with Sketches of 



some of its discoveries. By Rev. Martin S. Brennan, A.M., pp. 191. (New 

 Vork : D. Appleton and Co., 18S5.) 



A very interesting little book, the aim of the Author being simplicity; he has 

 devoted his care almost entirely to the explanation of principles to the exclusion 

 of Mechanics. Short sketches are given of the men who have added most 

 to the science by their great discoveries, 



