Published in Smithsonian Miscellaneous Collections, in 1940, in volume 91, issue 31, pages 1-5

Created: 2020-10-01, modified: 2020-10-01

Published in Smithsonian Miscellaneous Collections, in 1940, in volume 106, issue 16, pages 1-14

Created: 2013-07-29, modified: 2014-12-19