Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 213, pages 1-17

Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 213, pages 18-24

Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 213, pages 25-30

Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 213, pages 31-54

Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 213, pages 55-77

Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 213, pages 78-91

Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 213, pages 92-117

Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 213, pages 118-128

Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 214, pages 129-250

Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 214, pages 251-255

Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 215, pages 257-262

Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 215, pages 263-286

Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 215, pages 287-302

Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 215, pages 303-306

Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 215, pages 307-322

Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 215, pages 323-329