Report on the building and ornamental stones of Canada (1912)
Parks, William A, Canada. Mines Branch · Ottawa : Dept. of Mines · leaf 62
Montreal limestone. Buildings in Montreal showing the contrast between rock faceand bush hammered work. 1^1.ATE \. … Montreal limestone. Building in Montreal slunving 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 driven by steam the other by electricity. Six hand derricks, one steam derrick, one horse derrick, One…
Building stones
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