Project Gutenberg 2008-05-09 Public domain in the USA. 194 Schubert, Hermann 1848 1911 Schubert, Hermann Cäsar Hannibal Schubert, Hermann Casar Hannibal McCormack, Thomas J. (Thomas Joseph) 1865 1932 McCormack, Thomas Joseph McCormack, Thomas 03017382 Mathematical Essays and Recreations Notion and definition of number -- Monism in arithmetic -- On the nature of mathematical knowledge -- The magic square -- The fourth dimension -- The squaring of the circle. en Hyperspace Magic squares Mathematics -- Philosophy Circle-squaring QA Text Mathematics 1173572 2008-05-09T08:28:22 application/pdf 10826 2025-08-10T11:31:55.230166 application/rdf+xml 459666 2008-05-09T08:28:22 application/prs.tex 17701 2025-08-10T11:31:55.151166 image/jpeg 3989 2025-08-10T11:31:54.909183 image/jpeg 967829 2008-05-09T08:28:22 application/octet-stream application/zip 465229 2008-05-09T08:28:22 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog en.wikipedia