Published in Transactions of the Kansas Academy of Sciences, in 1909, in volume 22, pages 276-304
Published in Transactions of the Kansas Academy of Sciences, in 1909, in volume 22, pages 306-307
Published in Transactions of the Kansas Academy of Science, in 1909, in volume 22, pages 314-322
Published in Transactions of the Kansas Academy of Science, in 1909, in volume 22, pages 327-335