{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Notes On Gold Extraction By Means Of Cyanide Of Potassium, MacArthur-Forrest Patents, As Carried Out On The Witwatersrand Gold Fields, Transvaal, South Africa","author_name":"Feldtmann, W. R","thumbnail_url":"https://www.ebooknetworking.net/books/054/850/big0548505721.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0548505721.html\">Notes On Gold Extraction By Means Of Cyanide Of Potassium, MacArthur-Forrest Patents, As Carried Out On The Witwatersrand Gold Fields, Transvaal, South Africa</a>","width":400,"height":300}