Published in Proceedings of the American Academy of Arts and Sciences, in 1901, in volume 36, pages 395-414

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

Published in Proceedings of the American Academy of Arts and Sciences, in 1901, in volume 37, pages 19-45

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

Published in Proceedings of the American Academy of Arts and Sciences, in 1901, in volume 37, issue 12, pages 333-344

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