Describir: The practical draughtsman's book of industrial design, and machinist's and engineer's drawing companion: forming a complete course of mechanical, engineering, and architectural drawing. Translated from the french of M. Armengaud, the Elder, professor of design in the conservatoire of arts and industry, Paris, MM. Armengaud, the Younger, and Amouroux, civil engineers. Rewritten and arranged, with additional matter and plates, selections from and examples of the most useful and generally employed mechanism of the day / by William Johnson, assoc. inst., C. E. editor of "The Practical Mechanic's Journal"