Mathematical essays and recreations

Schubert, Hermann, 1848-1911 · 1903 · Chicago : Open Court Pub. Co. ; London : Kegan Paul, Trench, Truebner · 5 pictures

Popular mathematics essays by Hamburg schoolmaster Hermann Schubert, translated from German and published in 1903 by Open Court in Chicago and London for general readers interested in magic squares, squaring the circle and the fourth dimension. Illustrations are line diagrams of triangles and intersecting straight lines with small numeric labels, plus a line-engraved copy of Dürer's Melencolia I containing its magic square.

Mathematics · Magic squares · Hyperspace · Circle-squaring · Mathematics -- Philosophy

Internet Archive · Cornell University Library · Public domain (published before 1931) · More from this library