Report on the building and ornamental stones of Canada (1912)
Parks, William A. (William Arthur), 1868-1936, Canada. Mines Branch (1901-1936) · Ottawa : Dept. of Mines, Mines Branch · leaf 126
In<:( rsoIl-Sergeant H9 Track Channcllor. Plate XIII. … Sullivan Swivel Head ChannrlU^r, 85 channoUer, (losip;ned for cuttinji vertical channels only, has the chopping^engine attached to a solid upright standard, which is capable of being movedalong a heavy steel frame situated at one side oi the truck. This arrange-ment permits the engine to be set at…
Building stones · Geology, Economic · Stone industry and trade
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
