{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A Treatise of Plane Trigonometry, and the Mensuration of Heights and Distances. to Which Is Prefixed a Summary View of the Nature and Use of","author_name":"Jeremiah Day","thumbnail_url":"https://www.ebooknetworking.net/books/115/178/big1151784486.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1151784486.html\">A Treatise of Plane Trigonometry, and the Mensuration of Heights and Distances. to Which Is Prefixed a Summary View of the Nature and Use of</a>","width":400,"height":300}