Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 203, pages 1-17
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 203, pages 18-49
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 204, pages 53-75
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 204, pages 76-90
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 204, pages 91-102
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 204, pages 103-117
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 204, pages 118-166
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 204, pages 167-171
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 205, pages 173-177
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 205, pages 178-190
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 205, pages 191-200
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 205, pages 201-205
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 205, pages 206-213
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 205, pages 214-234
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 205, pages 235-239
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 205, pages 240-241
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 205, pages 242-251
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 205, pages 252-268
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 206, pages 269
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 206, pages 270-422
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 207, pages 423-553
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 207, pages 554-563
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 207, pages 564-567
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 207, pages 568
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 207, pages 569-579
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 207, pages 580-601
Published in Proceedings of The American Philosophical Society, in 1912, in volume 51, issue 207, pages 603