00825cam a22002411 4500 gs 13000255 DLC 20260227111314.0 790223s1912 xx 000 0 eng c gs 13000255 (OCoLC)4687386 Library, U.S. Geological Survey OCl DLC premarc TN287.C2 A5 Canada. Commission of Conservation. Mine-rescue work in Canada, by W. J. Dick. Ottawa, Commission of conservation, 1912. vii, 50 p. plates, plans (part fold.) diagr. 25 cm. At head of title: Commission of conservation, Canada. On cover: Commission of conservation Canada. Committee on minerals. Mine rescue work. Dick, William Joseph, 1833- 25249 25249