The Mollusca of Porto Rico, by William Healy Dall and Charles Torrey Simpson
Note on the Genus Dipterodon
A Visit to Jerusalem, by Charles T. Simpson
Contributions Toward a Monograph of the Noctuidæ of Boreal America
Collected papers
Marriage Notices 1785-1794 for the Whole United States ...
Synopsis of the Naiades
Descriptive Catalogue of the Naiades, Or Pearly Freshwater Mussels
Charles T. Simpson's Types in the Molluscan Genus Liguus
In Lower Florida Wilds
Charles T. Simpson's Types in the Molluscan Genus Liguus ... [Edited, with an Introduction] by Frederick M. Bayer
Collected papers
Contributions Toward a Monograph of the Noctuidæ of Boreal America
Note on the Genus Dipterodon
Charles T. Simpson's Types in the Molluscan Genus Liguus (with One Plate).
A Descriptive Catalogue of the Naiades: Harmandia. Dipolodon. Mutelidae
Collected paper
Charles Simpson