Abstract Research material, 1726-1978, compiled by Charles K. Hyde on mining history. Includes photocopies and microfilm of articles, journals, and book chapters pertaining to United States copper mining with a particular focus on Lake Superior copper as well as material on the British iron and steel industry. Also includes index cards with citations and research notes pertaining to the Quincy Mining Company, other Michigan copper mining activities, general topics in U.S./international mining, and...