||Edward Berg, Emil F. Knonquist
||The Manual Arts Press
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The ultimate aim of the authors of this book was to provide both teachers and students with a comprehensive collection of progressive problems which embody the very fundamental principles and examples related to the practical mechanical drawing. Each of the above mentioned problems has been given in the form of a specification sheet and, in addition to that, a lay-out sheet from which the student is supposed to make the completed drawing. The specification sheet, in turn, provides a statement of the problem and is, in most cases, supplemented with some text matter bearing upon and emphasizing the thing to be taught in the problem, or giving some relative information....