German philosophy and politics

Synthesis of 2-methyl-4-selenoquinazolone, 2-phenylbenzoselenazole, and its derivatives Dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Faculty of Pure Science of Columbia 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

The philosophy of life, and philosophy of language, in a course of lectures

Biology A lecture delivered at Columbia University in the series on Science, Philosophy and Art November 20, 1907

Readings on Fascism and National Socialism Selected by members of the department of philosophy, University of Colorado