A 1955 International Correspondence Schools textbook on carding cotton and synthetic staple on revolving-flat and roller-top cards. It covers card gearing and calculations (actual and mechanical draft, draft constant, doffer and lickerin speeds, production), then the gauges and procedures for setting each part of the card. Later sections cover stripping methods (roll, vacuum, continuous and central waste systems), grinding and maintenance, and quality control: waste tests, sliver testers and charts, evenness testing and nep counts. It includes gearing diagrams for Saco-Lowell and Whitin cards, worked examples and practice problems.