{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"How to Work with the Spectroscope: A Manual of Practical Manipulation with Spectroscopes of All Kinds. (Cambridge Library Collection - Astronomy)","author_name":"John Browning","thumbnail_url":"https://www.ebooknetworking.net/books/110/801/big1108014186.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1108014186.html\">How to Work with the Spectroscope: A Manual of Practical Manipulation with Spectroscopes of All Kinds. (Cambridge Library Collection - Astronomy)</a>","width":400,"height":300}