viii, 136pp, many black and white photographs and diagrams; three fold outs. Dark blue cloth-covered boards; gilt titles on front and spine. 8vo. Spine ends rubbed, cloth fraying on heel. Corners lightly rubbed. Top text block edge foxed. Slightly cocked. Front free endpapers just starting to fox. Internally very neat, clean, bright and tight. On developing better work methods and the principles of motion economy.
