Fast Day in New York was honored with a general suspension of business. Among the sermons, that of Dr. Raphael, a Jewish rabbi, receives the praise of the press as the most powerful argument delivered. It was a discourse proving slavery to be warranted by the Bible. Rev. Dr. Plumer, of Alleghany College, Pa., made a short address in Rev. Dr. Spring's Church. The "Human Thoughts" philosophers revelled in the day, and Rev. Henry Ward Beecher was in all his glory.