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 56
on, two hours 0-65 Crushing strength, lbs. per sq. in 9791 • wet, lbs. per sq. in 5863 - wet after freezing, lbs. per sq in.3923-Gain on treatment with carbonic acid and oxygen, grams per sq. in 0-00221 Transverse strength, lbs. per sq. in 1361 - Chiselling factor 6-9 Drilling factor 25-2 In… … Miramichi sandstone. Jcffery Hale liospital, Quebec. ^(^ <2^
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.