Description: From Scope of Bulletin: "The object of the current bulletin is to present recent data on mechanical shoveling in underground metal mines and in selected nonmetal mines. This bulletin supplements the 1924 edition, but the main discussion covers mechanical shoveling only, because most of the new material relates to equipment recently developed, to improved technique in loading, and ti changes in loading practice in certain mining districts."
Creator: Mosier, McHenry & Steinmesch, J. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department