Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 159, pages 3-4

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 159, pages 4-6

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 159, pages 7

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 159, pages 21-22

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 159, pages 22-23

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 159, pages 23

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 159, pages 25-48

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 159, pages 49-71

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 159, pages 71-74

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 159, pages 74-75

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 159, pages 75-79

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 159, pages 79-81

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 159, pages 81-114

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 159, pages 114-131

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 159, pages 131-132

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 160, pages 133-134

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 160, pages 135-147

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 160, pages 147-154

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 160, pages 154-155

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 160, pages 155

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 160, pages 156

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 160, pages 157-180

Published in Proceedings of The American Philosophical Society, in 1899, in volume 38, issue 160, pages 181-189