{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Letters from Dr. J. G. in defence of his Essay on the difference of the relation between motive and action, and that of cause and effect in physics: with replies by A. Crombie.","author_name":"Gregory M.D., James","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3PD/bigB003PDMV38.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003PDMV38.html\">Letters from Dr. J. G. in defence of his Essay on the difference of the relation between motive and action, and that of cause and effect in physics: with replies by A. Crombie.</a>","width":400,"height":300}