{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Lead and Zinc in the United States; Comprising an Economic History of the Mining and Smelting of the Metals and the Conditions Which Have Affected the Development of the Industries","author_name":"Walter Renton Ingalls","thumbnail_url":"https://www.ebooknetworking.net/books/021/700/big0217007392.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0217007392.html\">Lead and Zinc in the United States; Comprising an Economic History of the Mining and Smelting of the Metals and the Conditions Which Have Affected the Development of the Industries</a>","width":400,"height":300}