Published in Smithsonian Miscellaneous Collections, in 1959, in volume 137, pages 43-60

Created: 2012-06-29, modified: 2023-02-16

Published in Smithsonian Miscellaneous Collections, in 1959, in volume 139, issue 2, pages 1-27

Created: 2014-12-19, modified: 2014-12-19