{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A   New Theory, Accounting for the Dip of the Magnetic Needle: Being an Analysis of Terrestrial Magnetism, with a Solution of the Lines of Variation a","author_name":"James Barlow","thumbnail_url":"https://www.ebooknetworking.net/books/114/298/big1142980413.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1142980413.html\">A   New Theory, Accounting for the Dip of the Magnetic Needle: Being an Analysis of Terrestrial Magnetism, with a Solution of the Lines of Variation a</a>","width":400,"height":300}