Spangenberg's Steam and Electrical Engineeing.

In Questions and Answers. E. Spangenberg, M.

E.; Albert Uhl, A. I. E. E., and E. W. Pratt. 672 pp.

8 1/2 x 5 1/2; 643 Illustrations. George A. Zeller, St. Louis,

Mo. Price, $3.50. Supplied by Amateur Work.

As indicated above, the method of presenting the various topics included in this book is by means of over one thousand carefully prepared questions and answers, but in addition are to be found extended sections treating many important subjects in a more complete way than by simple answer?. The authors are experts in their several lines, with the additional ability of being able to impart their knowledge in a very interesting and readable way. An additional section of 83 pages treats of the locomotive; compressed air, gas and gasoline engines, mechanical refrigeration, hydraulic elevators and repair work have separate sections, making the book a valuable one to those interested in these subjects.

Spangefberg's Practical Arithmetic, Self Taught .

E. S. Spangenberg, C. E. 228 pp. 5 3/4 x 4. George A.

Zeller, St. Louis, Mo. Price, 50 cents. Supplied by

This book differs materially from the ordinary arithmetic, and to its decided advantage in view of the fact that it is written especially for self instruction. Special attention has been given to practical methods of calculation, familiar to all who make frequent use of mathematical processes, but rarely taught efficiently in the grammar schools. Any one requiring a book for review or for first instruction will find this one of great value; the size making it convenient for the pocket.

Modern Electrical Construction. Henry C. Horst-mann and Victor H. Tousley. 243 pp. 6 1/2 x 41/2. 138 Illustrations. Flexible, leatner. Price, $1.20. Fred, erick J. Drake & Co., Chicago, 111. For sale by Amateur Work.

It is intended in this book to provide the beginner in electrical construction work with a practical guide ; one that will tell him exactly how to install his work in accordance with the latest approved methods. In accordance with this idea the rules of the "National Electrical Code" of the National Board of Fire Underwriters have been used as a text in connection with which there is interspersed in the proper places a complete explanation of the work by which the rules apply, remembering in this the method by which many successful, practical workmen have learned the trade. An excellent book for all electrical workers.

Decorative Photography. No. 68, Photo Miniature

Tennant & Ward, New York.

Gives detail directions and excellent illustrations of decorative work in photography. Of particular interest in illustrating, menu and program decoration, advertising, etc.