Nos. 14–17 FEBRUARY, 1921
Fuel oil in industry. S. O. Andros. Shaw pub. co. 244p. $3.75.
A timely book giving information about the properties of fuel oil, its value as compared with coal, and details of methods of using it in industrial plants, locomotives, steamships, heating of buildings, etc. Contains a chapter on colloidal fuel, which consists of pulverized coal held in suspension in oil.
Author is editor of Oil News.
Inventions; their development, purchase and sale. W. F. Baff. Van Nostrand. 230p. $2.00.
Written by a patent attorney, the book discusses how an inventor, having secured his patent, may sell or otherwise realize on it, the many points being considered in detail.
Boy bird house architecture. L. H. Baxter. Bruce. 61p. $1.00.
Designed to encourage a liking for birds, to teach something of their habits, how to construct and put up houses to attract the various kinds of birds, and how to conduct bird house contests. Illustrated with half-tones and twenty plates of drawings showing details of design and construction of bird houses, and feeding devices.
Author is director of Manual Training, Public Schools, St. Johnsbury, Vermont.
Armature winding and motor repair; practical information and data covering winding and reconnecting procedure for direct and alternating current machines, compiled for electrical men responsible for the operation and repair of motors and generators in industrial plants and for repairmen and armature winders in electrical shops. D. H. Braymer. McGraw. 515p. $3.00.