... Report on the building and ornamental stones of Canada, vol. I-V (1912)
Parks, W. A. (William Arthur), 1868-1936, Canada. Mines Branch · Ottawa : Government printing bureau · leaf 64
Montreal limestone. Buildings in Montreal showing the contrast between rock faceand bush hammered work. Plate Y … Montreal limestone. Building in Montreal showing the effect of weathering. 35 The equipment may be summarized under three heads as below:—Quarrying plant. One 20 h.p. boiler, Two compressors, one dri\-en by steam the other by electricity, Six hand derricks, one steam derrick, one horse derrick, One…
Building stones
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