Published in Journal of the Elisha Mitchell Scientific Society, in 1921, in volume 36, issue 3, pages 146-196

Created: 2017-10-18, modified: 2017-10-18

Published in Journal of the Elisha Mitchell Scientific Society, in 1921, in volume 37, issue 1, pages 83-107

Created: 2017-10-18, modified: 2017-10-18