Published in Smithsonian Miscellaneous Collections, in 1958, in volume 135, issue 8, pages 1-11

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

Published in Smithsonian Miscellaneous Collections, in 1958, in volume 136, pages 1-112

Created: 2011-11-23, modified: 2017-05-15