Published in Proc. Amer. Philos. Soc., in 1885, in volume 22, pages 379-404

Created: 2010-03-21, modified: 2017-01-01

Published in Proc. Amer. Philos. Soc., in 1885, in volume 23, pages 94-103

Created: 2010-03-21, modified: 2021-04-05