{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Mathematical magick, or, The wonders that may be performed by mechanical geometry in two books: concerning mechanical [brace] powers, motions ... / by J. Wilkins ... (1691)","author_name":"John Wilkins","thumbnail_url":"https://www.ebooknetworking.net/books/124/085/big1240858302.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1240858302.html\">Mathematical magick, or, The wonders that may be performed by mechanical geometry in two books: concerning mechanical [brace] powers, motions ... / by J. Wilkins ... (1691)</a>","width":400,"height":300}