{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A New and Accurate Method of Finding a Ship's Position at Sea, by Projection On Mercator's Chart ...: The Principles of the Method Being Fully ... for Practice, and Examples from Actual O","author_name":"Thomas H. Sumner","thumbnail_url":"https://www.ebooknetworking.net/books/114/663/big1146637829.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1146637829.html\">A New and Accurate Method of Finding a Ship&#039;s Position at Sea, by Projection On Mercator&#039;s Chart ...: The Principles of the Method Being Fully ... for Practice, and Examples from Actual O</a>","width":400,"height":300}