{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A system of natural philosophy: in which the principles of mechanics, hydrostatics, hydraulic, pneumatics, acoustics, optics, astronomy, electricity, ... by more than two hundred engravings. To...","author_name":"J. L. Comstock","thumbnail_url":"https://www.ebooknetworking.net/books/B00/6D8/bigB006D86B1A.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B006D86B1A.html\">A system of natural philosophy: in which the principles of mechanics, hydrostatics, hydraulic, pneumatics, acoustics, optics, astronomy, electricity, ... by more than two hundred engravings. To...</a>","width":400,"height":300}