Origin of modern calculating machines, by J. A. V. Turck 69386 [Author: J. A. V. Turck] [Link: https://www.gutenberg.org/6/9/3/8/69386] [Files: 69386-0.txt; 69386-h.htm] Thanks to deaurider and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) Regards, Al