A Defence of Catholic Principles. In a Letter to a Protestant Minister in America. Dublin: Printed for D. Wogan, 1823. Third Edition. Small 8vo. Pp 130. Full calf boards, contents pages heavily foxed. Early inscriptions to endpapers.

First published in America in 1816, this work is widely considered the first extensive, systematic defence of Catholicism written and published in the United States in the English language. Earlier works were often imported or in other languages.

Demetrius Augustine Gallitzin (1770-1840) emigrated to the United States in 1792 and He was ordained by Bishop John Carroll in 1795, becoming one of the first Catholic priests ordained in the United States.