Physiology and histology of the Cubomedusæ including Dr. F.S. Conant's notes on the physiology

On the Existence of Active Oxygen Thesis Presented for the Attainment of the Degree of Doctor of Philosophy at the Johns Hopkins University

Slavery in Pennsylvania A Dissertation Submitted to the Board of University Studies of the Johns Hopkins University in Conformity with the Requirements for the Degree of Doctor of Philosophy, 1910