Published in University of Kansas Science Bulletin, in 1941, in volume 27, pages 61-69

Created: 2010-06-27, modified: 2011-06-21

Published in University of Kansas Science Bulletin, in 1941, in volume 27, pages 71-77

Created: 2011-12-15, modified: 2011-12-15

Published in University of Kansas Science Bulletin, in 1941, in volume 27, pages 105-132

Created: 2009-12-23, modified: 2011-06-21

Published in University of Kansas Science Bulletin, in 1941, in volume 27, pages 141-167

Created: 2009-12-23, modified: 2011-06-21