Seixas, Gershom Mendes. A Discourse, delivered in the Synagogue in New-York, on the Ninth of May, 1798, observed as a Day of Humiliation, &c. &c. Conformably to a Recommendation of the President of the United States of America. New-York: Printed by William A. Davis, for Naphtali Judah, 1798. 32 p.