Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, pages 284-286

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 10, pages 165-167

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 10, pages 167-169

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 10, pages 170-171

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 10, pages 172-178

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 11, pages 179-181

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 11, pages 182-188

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 11, pages 189-193

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 11, pages 194-201

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 12, pages 203-209

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 12, pages 209-218

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 12, pages 219-233

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 12, pages 234

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 12, pages 243-256

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 13, pages 257-267

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 13, pages 267-276

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 13, pages 276-283

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 13, pages 283-290

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 14, pages 291-295

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 14, pages 296-304

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 14, pages 304-313

Published in Proceedings of The American Philosophical Society, in 1840, in volume 1, issue 14, pages 313-325