Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1922, in volume 73, pages 437-448

Created: 2010-11-21, modified: 2015-01-05

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1922, in volume 74, pages 1-27

Created: 2013-03-03, modified: 2013-03-03

Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1922, in volume 74, pages 29-67

Created: 2010-11-21, modified: 2021-04-05

Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1922, in volume 74, pages 121-299

Created: 2010-11-21, modified: 2021-04-05