*E171
Babbage, Henry Prevast, Coupe
Babbage's calculating engines. Being a collec- tion of papers relating to them; their history, and construction. London, E. and F. N. Spon, 1889.
342 pe porte, diagrs. (part fold.) 30cm.
"T4is volume is intended to bring together ooo the information scattered in various places, ro- garding the Calculating Machines of Charles Bab- Dage eee eo
1. Calculating-machines, 2. Babbage, Charles, 1792-1871. I, Babbage, Charles, 1792-1871. Science and Teche