Originally published in 1908 by Orange Judd Company, this classic guide presents principles of mechanics as well as step-by-step instructions on how to build and repair all types of farm machinery, and offers advice practical enough to use on today"s modern farms. It introduces essential building blocks of machinery such as horsepower and the lever; explains general principles of gearing, friction, belts, and lubrication; and presents blueprints, illustrations, and instructions for dozens of machines and their uses. Includes bw illustrations. Lacks a subject index. 4.5x7.25. Annotation c. Book News, Inc., Portland, OR (booknews.com)