Published in Proc. Acad. nat. Sci. Philad.,, in 1845, in volume 2, pages 241-247

Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1845, in volume 2, pages 247-250

Published in Proceedings of the Academy of Natural Science of Philadelphia, in 1845, in volume 2, pages 134-160

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1845, in volume 2, pages 276-277

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1845, in volume 2, pages 230

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1845, in volume 2, pages 199-200

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1845, in volume 2, pages 285-286

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1845, in volume 2, pages 252-253

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1845, in volume 2, pages 211

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1845, in volume 2, pages 195-196

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1845, in volume 2, pages 228-230

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1845, in volume 2, pages 257-258

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1845, in volume 2, pages 258

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1845, in volume 2, pages 293-294

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1845, in volume 2, pages 290-293