Five Hundred and Seven Mechanical Movements, by Henry T. Brown. 122 Pages. Softbound. First printed in 1868 as America was entering the age of industrialization, this delightful book sets forth in simple, descriptive language with clear, concise drawings, 507 different types of mechanical movements in areas as diverse as steam engines, watch escapements, levels for surveyors and on, and on. A basic book for anyone interested in the history of technology or mechanics and an interesting way to spend an evening or two. UNAVAILABLE (BK-0559)
