{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A Treatise on the Principles and Practice of Levelling: Showing Its Application to Purposes of Railw","author_name":"Frederick Walter Simms","thumbnail_url":"https://www.ebooknetworking.net/books/110/353/big1103530402.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1103530402.html\">A Treatise on the Principles and Practice of Levelling: Showing Its Application to Purposes of Railw</a>","width":400,"height":300}