{"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 (Classic Reprint)","author_name":"G. Kustel","thumbnail_url":"https://www.ebooknetworking.net/books/133/203/big1332033431.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1332033431.html\">Roasting of Gold and Silver Ores: And the Extraction of Their Respective Metals Without Quicksilver (Classic Reprint)</a>","width":400,"height":300}