Cubists and Post-impressionism. With twenty-three reproductions in color...and forty-six half-tone illustrations (1914)
Eddy, Arthur Jerome, 1859-1920 · Chicago, A. C. McClurg & Co. · leaf 129
75 WHAT IS CUBISM? minds of men in all ages and all countries follow very closely the same channels. There are but two lines, curved and straight, and with these two lines all outward semblances of things are con- structed. So far as the unaided eye is concerned, every curved line may be entirely… … He applies these sections to the human figure as follows:
Cubism · Post-impressionism (Art)
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.