The structural and industrial materials of California (1906)
Aubury, Lewis E., b. 1862 · Sacramento, W.W. Shannon, Superintendent State printing · leaf 188
y. A Y, y. y o oZ (ISl) Low-Grade Material. Cement 20.23 21.42 8.68 7.40 3.11 3.20 65.23 63.08 1.72 1.02 .25 1.07 1.46 182 STRUCTURAL AND INDUSTRIAL MATERIALS OP CALIFORNIA. limestone at the qiiarr3\ Steam drills and dynamite are used in quarry-ing the limestone, and a steam shovel for loading the…
Building stones · Portland cement · Clay · Mines and mineral resources
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