{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Electrons & Ether Waves: Being the Twenty-Third Robert Boyle Lecture, on May, 1921","author_name":"William Henry Bragg","thumbnail_url":"https://www.ebooknetworking.net/books/111/324/big1113249188.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1113249188.html\">Electrons &amp; Ether Waves: Being the Twenty-Third Robert Boyle Lecture, on May, 1921</a>","width":400,"height":300}