Principles of geology: or, The modern changes of the earth and its inhabitants, considered as illustrative of geology Q Science
A descriptive account of the building recently erected for the departments of natural history of the United States National Museum Q Science
Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge Q Science
Odontographie. Vergleichende Darstellung des Zahnsystemes der lebenden und fossilen Wirbelthiere Q Science
