{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Construction and Principal Uses of Mathematical Instruments: Including Thirty Folio Illustrations of Several Instruments","author_name":"N. Bion","thumbnail_url":"https://www.ebooknetworking.net/books/187/933/big1879335603.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1879335603.html\">The Construction and Principal Uses of Mathematical Instruments: Including Thirty Folio Illustrations of Several Instruments</a>","width":400,"height":300}