{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Roasting of Gold and Silver Ores, and the Extraction of Their Respective Metals Without Quicksilver - Primary Source Edition","author_name":"G. Kustel, A. J. Leary","thumbnail_url":"https://www.ebooknetworking.net/books/128/786/big1287860397.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1287860397.html\">Roasting of Gold and Silver Ores, and the Extraction of Their Respective Metals Without Quicksilver - Primary Source Edition</a>","width":400,"height":300}