Published in Proceedings of The American Academy of Arts And Sciences, in 1918, in volume 53, pages 213-265

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

Published in Proceedings of the American Academy of Arts and Sciences, in 1918, in volume 53, issue 9, pages 695-749

Created: 2017-10-18, modified: 2017-10-18