Injury Experience in the Quarry Industry, 1952: Detailed Analysis of Safety Factors and Related Employment Data
Description: From Introduction and Summary: "The quarries covered by this report have been classified according to the kind of rock produced, as follows: Cement rock (including limestone or other stone used in making cement), limestone, marble, sandstone, slate, traprock, and granite. The tables in this bulletin represent all phases of the quarrying industry, except sand, gravel, and clay."
Creator: Reese, Seth T. & Kearney, Naomi W.
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