41 books
Remarks on the Number of Unionidae
Contributions to Geology (Classic Reprint)
A Synopsis of the Family Unionidæ (Classic Reprint)
Observations on the Genus Union
Observations on the Genus Unio, Vol. 5
Observations on the Genus Unio, Vol. 1: Together With Descriptions of New Species in the Families Naiades, Colimacea, Lymnaeana, Melaniana and Peristomiana (Classic Reprint)
A Synopsis of the Family Naiades (Classic Reprint)
A Synopsis of the Family of Naïades (Classic Reprint)
Observations on the Genus Unio, Vol. 6: Together With Descriptions of New Species in the Family Unionidae; Read Before the Academy of Natural Sciences of Philadelphia and Published in Their Journal; Part I, 1857 (Classic Reprint)
Check Lists of the Shells of North America
Family Unionidae - Scholar's Choice Edition
Observations on the genus Unio Volume V
A Synopsis of the Family Naiades
Observations on the Genus Unio Volume 5; Together with Descriptions of New Genera and Species in the Families Naiades, Conchae, Colimacea, Lymnaeana, Melaniana, and Peristomiana ...
A Synopsis of the Family Unionidae
On the Fossil Foot-Marks in the Red Sandstone of Pottsville, Pennsylvania
Observations on the Genus Unio Volume 4; Together with Descriptions of New Genera and Species in the Families Naiades, Conchae, Colimacea, Lymnaeana, Melaniana, and Peristomiana
Observations on the Genus Unio Volume 6-7; Together with Descriptions of New Genera and Species
Observations on the Genus Unio Volume 5; Together with Descriptions of New Genera and Species
A Synpsis of the Family Unionide
Observations on the Genus Unio Volume 1; Together with Descriptions of New Genera and Species
Observations on the Genus Unio, Together with Descriptions of New Genera and Species
Notes on Microscopic Crystals Included in Some Minerals, Etc. (Extracted from the Proceedings of the Academy of Natural Sciences of Philadelphia.).