Report on the building and ornamental stones of Canada
A government survey of Canadian building and ornamental stone, written by geologist William A. Parks for the Dept. of Mines Branch in Ottawa, 1912, for quarry operators, builders, and architects. Halftone photographs show open quarry faces, bedded limestone ledges, blasted granite blocks, and derricks, alongside line maps keyed by hatched and stippled geological patterns useful as textures.
