Published in Kansas University Science Bulletin, in 1913, in volume 6, issue 2, pages 323-359

Created: 2011-11-26, modified: 2016-02-01

Published in University of Kansas Science Bulletin, in 1913, in volume 7, pages 159-182

Created: 2011-06-03, modified: 2023-02-16

Published in Kansas University Science Bulletin, in 1913, in volume 7, issue 3, pages 111-121

Created: 2011-12-14, modified: 2011-12-14