Largely taken from 1916 editions of American Machinist Magazine, here are interesting articles on Knurling, Hardening and Softening Steel, Casehardening, Measuring and Cutting Screw Threads, Secrets of Cartridge Brass Manufacture and Handtools for the Blacksmith’s Steam Hammer. Most have some application today, and all are interesting in their own right. And a bargain price! 48 pages. 61 engravings. Softcover. Lindsay Publications