{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The method of finding the longitude at sea, by timekeepers: To which are added, tables of equations to equal altitudes","author_name":"William Wales","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3YK/bigB003YKFK8K.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003YKFK8K.html\">The method of finding the longitude at sea, by timekeepers: To which are added, tables of equations to equal altitudes</a>","width":400,"height":300}