Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 46, pages 175-178

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 46, pages 178-181

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 46, pages 181-183

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 46, pages 183-184

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 46, pages 184-185

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 46, pages 185

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 46, pages 186-189

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 46, pages 193-196

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 46, pages 196-200

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 46, pages 200-202

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 46, pages 202-209

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 47, pages 211

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 47, pages 214-216

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 47, pages 216-221

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 47, pages 222

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 47, pages 223-224

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 47, pages 225-228

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 47, pages 229-230

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 47, pages 231-233

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 47, pages 234-236

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 47, pages 236-238

Published in Proceedings of The American Philosophical Society, in 1851, in volume 5, issue 47, pages 239-244