Report on the building and ornamental stones of Canada (1912)
Parks, William A, Canada. Mines Branch · Ottawa : Dept. of Mines · leaf 428
line, sharply serrated on the cleav-: age planes. Split on cleavage. Broke from one end support and spliton bedding. Broke across with serrated edges andsplits along the bedding. With the exception of the New Rockland slate all the above examples were eit erderived from old material or, in the case… … Shearing strength, lbs. per sq. in. Remarks. 583584 588596 606 598 604605590 Rogers and Quirk. ..Morrison Quarry Co Villeray Quarry Co.Francois Corbeil.... Montreal.Montreal. Montreal Prison.Joseph Legace.. . Montreal Montreal, C6te St.tMichel I Damien Bigras Gregoire Dagenais. . .Standard Quarry…
Building stones
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