00812nam a22002411 4500 gs 48000293 DLC 20260227111354.0 871005s1947 oncf f00000 eng c gs 48000293 //r87 U.S. Geol. Survey Libr./ICU ICU n-cn--- QH1 .C134 no. 47-1 557.1 Alcock, Frederick James, 1888- A century in the history of the Geological Survey of Canada. Ottawa, E. Cloutier, printer to the King, 1947. 94 p. plates. 23 cm. Canada. National Museum, Ottawa. Special contribution no. 47-1 Geological Survey of Canada. Geologists Canada. Special contribution (National Museum of Canada) ; no. 47-1. 28298 28298