Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 55, pages 167-168

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 55, pages 168-173

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 55, pages 173-175

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 55, pages 176-177

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 55, pages 178-180

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 55, pages 180-182

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 55, pages 182-184

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 55, pages 185-188

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 55, pages 188-191

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 55, pages 191-197

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 55, pages 197-202

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 56, pages 203-206

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 56, pages 206-208

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 56, pages 208-212

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 56, pages 212-213

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 56, pages 213-216

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 56, pages 216-220

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 56, pages 220-221

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 56, pages 221-228

Published in Proceedings of The American Philosophical Society, in 1856, in volume 6, issue 56, pages 228-230