Published in Milwaukee Bulletin Wisconsin Natural History Society, in 1910, in volume 7, pages 103-108

Published in Bulletin of the Wisconsin Natural History Society, in 1910, in volume 8, pages 45-52

Published in Bull. Wisc. Nat. Hist. Soc, in 1910, in volume 8, pages 91-101

Published in Bulletin Wisconsin Natural History Society, in 1910, in volume 8, pages 170-179

Published in Bulletin of the Wisconsin Natural History Society, in 1910, in volume 9, pages 67-85