Bibliography of North American Geology for 1940 and 1941
Emma Mertins Thom
Geology by Alice Evelyn Wilson, 1935, 1936, and 1937. Map 588A. Scale 1 : 126,720 or 1 inch to 2 miles. 1940. Opawloa Lake, Abitibl Territory, Quebec. Geology by George Shaw, 1937. Map 556A. Scale 1 : 63,360 or 1 inch to 1 mile. 1940.