Published in Proceedings of The American Philosophical Society, in 1918, in volume 56, pages 673-689

Created: 2011-05-05, modified: 2017-01-01

Published in Philadelphia Proceedings of the American Philosophical Society, in 1918, in volume 57, pages 521-526

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Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 1-48

Created: 2017-01-01, modified: 2017-01-01

Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 49-59

Created: 2017-01-01, modified: 2017-01-01

Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 60-68

Created: 2017-01-01, modified: 2017-01-01

Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 69-98

Created: 2017-01-01, modified: 2017-01-01

Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 99-111

Created: 2017-01-01, modified: 2017-01-01

Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 112-129

Created: 2017-01-01, modified: 2017-01-01

Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 130-143

Created: 2017-01-01, modified: 2017-01-01

Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 144-154

Created: 2017-01-01, modified: 2017-01-01

Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 155-172

Created: 2017-01-01, modified: 2017-01-01

Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 173-292

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Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 293-343

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Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 344-353

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Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 354-356

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Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 357-374

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Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 375-439

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Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 440-478

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Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 479-490

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Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 513-520

Created: 2017-01-01, modified: 2017-01-01

Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 627-631

Created: 2017-01-01, modified: 2017-01-01

Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 632-648

Created: 2017-01-01, modified: 2017-01-01

Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 649-668

Created: 2017-01-01, modified: 2017-01-01