{"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, ... explained, and illustrated by more than tw","author_name":"J L. 1789-1858 Comstock","thumbnail_url":"https://www.ebooknetworking.net/books/117/764/big1177641003.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1177641003.html\">A system of natural philosophy: in which the principles of mechanics, hydrostatics, hydraulic, pneumatics, acoustics, optics, astronomy, electricity, ... explained, and illustrated by more than tw</a>","width":400,"height":300}