An encyclopedist of the dark ages_ Isidore of Seville

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

The Dark Ages, and Other Poems

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 Transformation of Early Christianity from an Eschatological to a Socialized Movement A Dissertation Submitted to the Faculty of the Graduate School of Arts and Literature in Candidacy for the Degree of Doctor of Philosophy

Education in England in the Middle Ages Thesis Approved for the Degree of Doctor of Science in the University of London