A fascinating compendium of early-20th-century mechanical devices, this expansive work ranges from basic levers to complex machinery. More than 1,800 engravings include simple illustrations and detailed cross-sections.

A fascinating compendium of early-20th-century mechanical devices, this expansive work ranges from basic hooks and levers to complex machinery used in steam, motive, hydraulic, air, and electric power, navigation, gearing, clocks, mining, and construction. More than 1,800 engravings include simple illustrations and detailed cross-sections.