{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Experimental extraction of gold and silver from California and Nevada ores","author_name":"Abraham L. Engel","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3HK/bigB003HKR24C.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003HKR24C.html\">Experimental extraction of gold and silver from California and Nevada ores</a>","width":400,"height":300}