The boy engineers;
A practical handicraft manual by James Lukin, issued by G. P. Putnam's Sons in New York in 1880 to teach boys model-making, metalwork and steam-engine construction. Wood-engraved line diagrams show lathes, vises, boilers and cylinders in section and elevation, hatched and letter-keyed, offering designers crisp mechanical parts, cutaway shading patterns and alphabetic annotation.
