THIS little book will be found very useful for the teaching of the fundamental principles of geometry to young students. The most important properties of triangles and other plane figures are ...

THIS is a second edition of a pleasant book. There is nothing very startling in the treatment or sequence, except that the “Pythagorean Theorem “is artificially postponed, apparently so that the ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. By the early twentieth century, ...