00903cam a22002411 4500 gs 15000432 DLC 20260227111317.0 761012s1915 oncab b 000 0 eng c gs 15000432 (OCoLC)2497630 U.S. Geol. survey. Library OGraD OCoLC NSbSU DLC premarc QE185 .A2 no. 57 Barlow, Alfred E. (Alfred Ernest), 1861-1914. Corundum, its occurrence, distribution, exploitation, and uses, by Alfred Ernest Barlow. Ottawa, Government Printing Bureau, 1915. 1 p. l., vii, 377 p. col. front., illus., fold. map. 25 cm. Canada. Geological Survey. Memoir 57. Geological series no. 50 "Bibliography of Canadian corundum": p. 317-324. Corundum. Memoir (Geological Survey of Canada) ; 57 25527 25527