{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Persistent Problems of Philosophy: An Introduction to Metaphysics Through the Study of Modern Systems (1917)","author_name":"Mary Whiton Calkins","thumbnail_url":"https://www.ebooknetworking.net/books/111/215/big1112158405.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1112158405.html\">The Persistent Problems of Philosophy: An Introduction to Metaphysics Through the Study of Modern Systems (1917)</a>","width":400,"height":300}