Dinwiddie, James2009-07-222009-07-222009-07-22http://hdl.handle.net/10222/11731These notes written by James Dinwiddie ca. 1793 titled "Recreations" contain several mathematical puzzles, such as magic squares, and other mathematical facts. This file consists of twelve pages of notes.enMagic squaresLecture notesJames DinwiddieRecreationsGeometry1793Text