Mine accidents and their prevention, illustrated by 200 pictures taken in the mines by W. B. Bunnell, official photographer of the D. L. & W. R. R. company, for the instruction of mine-workers, especially adapted for the teaching of English to the non-Eng
Mine accidents and their prevention, illustrated by 200 pictures taken in the mines by W. B. Bunnell, official photographer of the D. L. & W. R. R. . for the teaching of English to the non-Eng
Mine Accidents and Their Prevention: Illustrated by 200 Pictures Taken in the Mines by W. B. Bunnell, Official Photographer of the D. L. & W. R. R. . for the Teaching of English to the Non