DescriptionRod calculus Addition.jpg Addition in Rod Calculus 筹算加法 Source Own work Author Gisling...
DescriptionRod calculus addition 2.jpg Rod calculus addition with carry 筹算进位加法 Source Own work Author Gisling...
W.C. of Reinforced Concrete Crown 8vo. 3s. net. (With Dr H. Bryon Calculus for Engineers. wooD.) 269 pp. Crown 8vo. 4s. net. Hey- [In the Broadway...
This file has an extracted image: Harry Bateman (1882-1946) circa 1930.jpg....
