*E,17]  CALCULATING-MACHINES. ell Babbage, Henry Prevast, comps Babbage's calculating engines, Being a collec: 4ion of papers relating to them; their history, and construction, London, E, and F, N. Spon, 1889, 342 p. port., diagrs. (part fold.) 30cm. UP4is volume is intended to bring together ... the information scattered in various places, re- garding the Calculating Machines of Charles Hab- bage eoee
1. Calculating-machines, 2. Babbage, Charles, © 1792-1871. I, Babbage, Charles, 1792-1871.