{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Pendulograph, A Series Of Bi-Pendulum Writings Of The Twenty Ratios Of The Musical System: Or Sound Seen In The Silence (1881)","author_name":"John Andrew","thumbnail_url":"https://www.ebooknetworking.net/books/110/432/big1104320355.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1104320355.html\">The Pendulograph, A Series Of Bi-Pendulum Writings Of The Twenty Ratios Of The Musical System: Or Sound Seen In The Silence (1881)</a>","width":400,"height":300}