Published in University of Kansas Science Bulletin, in 1949, in volume 33, pages 169-215

Published in University of Kansas Science Bulletin, in 1949, in volume 33, pages 257-270

Published in University of Kansas Science Bulletin, in 1949, in volume 33, pages 279-288

Published in University of Kansas Science Bulletin, in 1949, in volume 33, issue 1, pages 3-167

Published in University of Kansas Science Bulletin, in 1949, in volume 33, issue 3, pages 217-254

Published in Univ. Kansas Sci. Bull., in 1949, in volume 33, issue 5, pages 271-278