Book Description
""THIS book is one of the series of handbooks on industrial subjects being published by the Popular Mechanics Co. Like the magazine, these books are ""written so you can understand it,"" and are intended to furnish information on mechanical subjects at a price within the reach of all. ""The texts and illustrations have been prepared expressly for this Handbook Series, by experts; are up-to-date, and have been revised by the editor of Popular Mechanics.""