{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Methods and costs of mining quicksilver ore at the New Idria Mine, San Benito County, Calif (Information circular / Bureau of Mines)","author_name":"W. R Moorehead","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0008CCLNE.html\">Methods and costs of mining quicksilver ore at the New Idria Mine, San Benito County, Calif (Information circular / Bureau of Mines)</a>","width":400,"height":300}