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 223
uld be regarded with some latitude. Specific gravity 2-702 Weight per cubic foot, lbs 167-757 Pore space, per cent 0-544 Ratio of absorption, per cent 0-208 Coefficient of saturation one hour 0-56 two hours 0-65 thirty-eight hours 0-79 Crushing strength, lbs. per sq. in 25959- wet, lbs. per sq. in… … /-//^/=fBOUP 141 The ]iiHv:iUnco of black knots is the most unfortunate featun; in thisstone, as in all the product from tlie area. No pieces of any consiiiijrablesize can be obtained free from this disfigurement. The equipment consists of hand derricks only. Five or six men areusually employed,…
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.
