Project Gutenberg 2016-12-06 Public domain in the USA. 148 Newcastle, Margaret Cavendish, Duchess of 1674 Cavendish, Margaret, Duchess of Newcastle Lucas, Margaret Philosophical Letters: or, modest Reflections upon some Opinions in Natural Philosophy Produced by Clare Graham and Marc D'Hooghe at Free Literature (online soon in an extended version, also linking to free sources for education worldwide ... MOOC's, educational materials,...) Images generously made available by the Internet Archive. en Philosophy Newcastle, William Cavendish, Duke of, 1592-1676 PR Text Browsing: Philosophy & Ethics 979526 979535 2024-08-22T09:24:47.652022 2023-09-23T08:00:15.625330 text/html text/html 982641 2016-12-07T10:41:06 text/html; charset=iso-8859-1 544446 2016-12-07T10:41:32 text/html; charset=iso-8859-1 application/zip 558334 2024-08-22T09:24:57.641999 application/epub+zip 577427 2024-08-22T09:24:48.863035 application/epub+zip 404212 2024-08-22T09:24:48.245070 application/epub+zip 848790 2024-08-22T09:25:04.617968 application/x-mobipocket-ebook 782734 2024-08-22T09:24:56.997005 application/x-mobipocket-ebook 609607 2022-09-24T11:53:08.631456 application/x-mobipocket-ebook 890408 890141 2024-08-22T09:24:46.148056 2023-09-23T08:00:13.883362 text/plain; charset=us-ascii text/plain 890573 2016-12-07T10:40:34 text/plain; charset=iso-8859-1 294424 2016-12-07T10:41:30 text/plain; charset=iso-8859-1 application/zip 18006 2024-08-22T09:25:04.765963 application/rdf+xml 19315 2024-08-22T09:24:48.381154 image/jpeg 3161 2024-08-22T09:24:48.313019 image/jpeg 553837 2024-08-22T09:24:47.733039 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://www.gutenberg.org/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog