{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Miner\"s Manual of Arithmetic and Surveying, Containing the Usual Calculations Employed By The Miner, Those Required at the Copper Ticketing, the Mode of Estimating the Value of Ore in a Lode, & Etc","author_name":"William Rickard","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B001FRBCFO.html\">The Miner&quot;s Manual of Arithmetic and Surveying, Containing the Usual Calculations Employed By The Miner, Those Required at the Copper Ticketing, the Mode of Estimating the Value of Ore in a Lode, &amp; Etc</a>","width":400,"height":300}