{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The assayer's guide: or, Practical directions to assayers, miners and smelters, for the tests and assays","author_name":"Oscar Montgomery Lieber","thumbnail_url":"https://www.ebooknetworking.net/books/B00/5HI/bigB005HIWRLK.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B005HIWRLK.html\">The assayer&#039;s guide: or, Practical directions to assayers, miners and smelters, for the tests and assays</a>","width":400,"height":300}