{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A Synopsis of Practical Mathematics: Containing Plain Trigonometry; Mensuration of Heights, Distances, Surfaces, and Solids; Surveying of Land, ... Numbers and of Sines and Tangents. for the U","author_name":"Alexander Ewing","thumbnail_url":"https://www.ebooknetworking.net/books/114/880/big1148806458.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1148806458.html\">A Synopsis of Practical Mathematics: Containing Plain Trigonometry; Mensuration of Heights, Distances, Surfaces, and Solids; Surveying of Land, ... Numbers and of Sines and Tangents. for the U</a>","width":400,"height":300}