{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Letter from the Secretary of the Treasury transmitting report upon the mineral resources of the States and Territories west of the Rocky Mountains","author_name":"Michigan Historical Reprint Series","thumbnail_url":"https://www.ebooknetworking.net/books/142/553/big142553239X.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-142553239X.html\">Letter from the Secretary of the Treasury transmitting report upon the mineral resources of the States and Territories west of the Rocky Mountains</a>","width":400,"height":300}