A First Course in Physics. Robert A. Millikan and Henry G. Gale. 488 pp. 71/2 x 5 inches. 464 illustrations and several poitraits. Price $1.25 Ginu & Co., Boston.

This one year course in physics has been developed from the experience of the authors at the School of Education of the University of Chicago, and in dialing with the physics instruction in affiliated high schools and academies. The hook is intended for third y*ar high school pupils, and is a simple, objective pre-•eitation of the subject as opposed to a formal and mathematical one. The historical aspect of the subject is treated in a most interesting way, enabling the pupil to obtain an excellent perspective of the de\el-opment of the science.

The text throughout is exceptionally clear and the various topics are preset ted in a most interesting way, having the life and spirit well calculated to arouse and sustain the interest of the pupil.

All the experiments in the hook have been carefully chosen with reference to their usefulness as effective clas - room demonstrations. It would certainly seem impossible to have a dull, lifeless class when this book is used.

Designs for Small Dynamos And Motors. Cecil P.

Poole. 186 pp. 91/2 x 6 inches. 231 I llust rations.

Price $2 00 MeGraw Publishing Co., New York.

Most of the chapters of this book originally formed articles written for the " American Electrician " and many of them are included in "Electrical Designs" a book published by the same publisher]s. Twenty-two designs of various types and sizes of motors and dynamos are given, of which eleven are one-horse power or under. The text is confined to specific directions about each machine and does not include any theoretical matter.

Anyone wishing to make electrical machines of the types described will find the book of much value. Handbook of Mathematics. T. Claudel Translated by Otis Allen kenyon 708 pp. 9 1/2 x 6 inches. 422 illustrations. Price $3.50. MeGraw Publishing Co., New York.

This book is intended primarily as a reference book for the mechanic, engineer or teacher, but it is also well adapted to home study for anyone desirous of quickly learning some particular mathematical process needed for work in hand. Owing to the wide scop of the book only essentials are given, but this is what makes its greatest value for the purposes mentioned. With the exception of a few pages in life insurance, which follows the French methods, the processes are In accord with the accepted American practice. In Fiance the book has quickly passed through seven editions, and an equal success is predicted for this country.