Technical Report Archive & Image Library (TRAIL) - 2 Matching Results

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Sampling and Estimation of Ore Deposits

Report issued by the Bureau of Mines over the sampling and analyses of ore deposits. Methods, problems, and results are presented and discussed. This report includes tables, and illustrations.

Date: 1932

Creator: Jackson, Charles Freeman & Knaebel, John B.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Coal-Mine Accidents in the United States, 1930

Report compiled by the U.S. Bureau of Mines including statistics on fatal and non-fatal accidents in coal mines located in the United States as well as data regarding the various operations (e.g., number of miners employed and average production). The information is organized into tables for comparison and the text draws some overall conclusions in the summary.