Proceedings of the Academy of Natural Sciences of Philadelphia.

v.61 (1909)

Catalogue of scientific papers, 1800-1863 [to 1884-1900]. Compiled by the Royal Society of London.

v. 16

Catalogue of scientific papers, 1800-1863 [to 1884-1900]. Compiled by the Royal Society of London.

v. 17

Proceedings of the Academy of Natural Sciences of Philadelphia.

v.41 (1889)

Proceedings of the Academy of Natural Sciences of Philadelphia.

v.49 (1897)

Proceedings of the Academy of Natural Sciences of Philadelphia.

v.66 (1914)

Proceedings of the Academy of Natural Sciences of Philadelphia.

v.68 (1916)

Proceedings of the Academy of Natural Sciences of Philadelphia.

v.18 (1866)

Transactions of the Natural History Society of Glasgow.

new ser. v. 8 (1905-1908)

Proceedings of the Academy of Natural Sciences of Philadelphia.

v.46 (1894)

Catalogue of scientific papers, 1800-1863 [to 1884-1900]. Compiled by the Royal Society of London.

v. 1

Proceedings of the Academy of Natural Sciences of Philadelphia.

v.8 (1856)

Proceedings of the Academy of Natural Sciences of Philadelphia.

v.22 (1870)

Proceedings of the Academy of Natural Sciences of Philadelphia.

v.29 (1877):[Gaps]

Proceedings of the Academy of Natural Sciences of Philadelphia.

v.16 (1864)