{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The gyroscopic compass; a non-mathematicaltreatment","author_name":"Thomas Wightman Chalmers","thumbnail_url":"https://www.ebooknetworking.net/books/117/842/big1178421791.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1178421791.html\">The gyroscopic compass; a non-mathematicaltreatment</a>","width":400,"height":300}