http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f277-subject=Pythagorean proposition) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f277-subject%3DPythagorean%20proposition Results for your query: docsPerPage=100;f277-subject=Pythagorean proposition Thu, 01 Jan 1970 12:00:00 GMT The Pythagorean proposition: its demonstrations analyzed and classified and bibliography of sources for data of the four kinds of "proofs". Loomis, Elisha S. (Elisha Scott), 1852-1940 https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT