{"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, hydraulics, pneumatics, acoustics, optics, astronomy, ... explained, and illustrated by more than","author_name":"J L. 1789-1858 Comstock","thumbnail_url":"https://www.ebooknetworking.net/books/B00/B32/bigB00B3236KK.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00B3236KK.html\">A system of natural philosophy : in which the principles of mechanics, hydrostatics, hydraulics, pneumatics, acoustics, optics, astronomy, ... explained, and illustrated by more than</a>","width":400,"height":300}