{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Letters of Alexander Von Humboldt to Varnhagen Von Ense: From 1827 to 1858; With Extracts From Varnhagen's Diaries Letters of Varnhagen and Others to Humboldt (Classic Reprint)","author_name":"Friedrich Kapp","thumbnail_url":"https://www.ebooknetworking.net/books/133/083/big1330833112.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1330833112.html\">Letters of Alexander Von Humboldt to Varnhagen Von Ense: From 1827 to 1858; With Extracts From Varnhagen&#039;s Diaries Letters of Varnhagen and Others to Humboldt (Classic Reprint)</a>","width":400,"height":300}