Reprint of original 1937 publication. Covers, materials, layout, cutting, profiles, terms, pitch, hobbing, feeds & speeds, measuring, cutting oils, tables for indexing, worm gears, burnishing, lapping, grinding, heat-treating, and other methods. Great detail with many illustrations. Soft cover. 344 pages.

1936 reprint addresses metal cleaning, vapor degreasing, polishing & buffing, plating solutions, chemical cleaning, specs for plated coatings, abrasinve rolling, ball burnishing, methods of analyzing plating solutions, and a list of chemical names. Soft cover. 53 pages.

A practical manual on cleaning, repairing & adjusting. Addresses tools, materials and processes in clockwork. Originally published in 1889, most of the information is applicable & valuable today. Includes chapters on mainsprings, striking mechanisms, suspensions, escapements, escape wheels, pinions, clicks, crutches, pallets, French & German & English clocks, bench vices, drill stock, lathes, etc. Over 100 illustrations. Soft cover. 159 pages.

Reprint of 1900 Percival Marshall book explaining complete instructions for making electrical timepieces, synchronized clock systems, and chiming mechanisms. Chapters on various types of electric clocks, how to produce a seconds pendulum clock, using inexpensive materials, converting a grandfather clock to impulse drive, the sychronome system, and a master chiming gear for 1/2 minute electrical time circuits. Generously illustrated. Soft cover. 159 pages.

Reprint of 1922 treatise with complete instructions for wood & metal turning, screw cutting, measuring tools, metal spinning, etc. Includes a section on building your own home-made lathe with attachments. Soft cover. 240 pages.

Reprint of 1921 publication. Includes definitions of terms, proportion tables. worm & bevel gear proportions & calculations, cutting & milling techniques, hobbing, back-cutting, shaping, etc. Invaluable fully illustrated texbook. Soft cover. 48 pages.