{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Electro-magnetic telegraphs. [To accompany bill H.R. no. 641.] December 30, 1842. 27th Congress, 3d Session, HR 17","author_name":"Charles Goadsby Ferris & Samuel Finley Breese Morse","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B001NCPFFE.html\">Electro-magnetic telegraphs. [To accompany bill H.R. no. 641.] December 30, 1842. 27th Congress, 3d Session, HR 17</a>","width":400,"height":300}