Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1855, in volume 7, pages 196-197

Created: 2011-05-19, modified: 2021-04-05

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1855, in volume 7, issue 10, pages 385-387

Created: 2017-10-11, modified: 2017-10-11