Published in Journal of the Washington Academy of Sciences, in 1917, in volume 7, pages 127-131

Created: 2010-11-20, modified: 2011-06-21

Published in Journal of The Washington Academy of Sciences, in 1917, in volume 7, pages 388-392

Created: 2014-01-30, modified: 2014-01-30

Published in Journal of The Washington Academy of Sciences, in 1917, in volume 7, pages 504-512

Created: 2014-01-30, modified: 2014-01-30

Published in Washington Dc J Acad Sci, in 1917, in volume 7, pages 537-538

Created: 2012-05-15, modified: 2012-05-15