Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 2-25
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 28-32
Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 43-54
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 55-80
Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 80-88
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 93-96
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 106-107
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 143-146
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 154-156
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 156
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 157-158
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 159-162
Published in Proceedings of the Academy of Natural Sciences, Philadelphia, in 1863, in volume 15, pages 162-174
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 190
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 205-207
Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 213-221
Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 221-224
Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 242-254
Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 262-267
Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 267-271
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 271-272
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 278-279
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 279-280
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 280-281
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 304-305
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 306-321
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 330-331
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 332-333
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 333-335
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 336
Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 352-360