This is a history book. After bidding my relatives and friends good-bye, I proceeded to Philadelphia, Pa., and reported for duty on board the United States steamer Princeton, which was lying anchored in the Delaware river off Philadelphia, and which was the same vessel on which Abel Parker Upshur, Secretary of State under President Tyler, was killed by the explosion of a monster cannon whilst visiting said vessel, in company with the President and other members of the Cabinet. The duty aboard this vessel was of an initiatory character, to prepare officers for clerical duties peculiar to each of their particular offices. I made the acquaintance on this vessel of Surgeon James McClelland, who was the Surgeon of the Princeton. He had entered the United States Navy when a young man, and had been in the service ever since. He was about fifty-five years of age. The first morning after sleeping aboard this vessel, I was awakened by what is always usual aboard a man-of-war, a large gun fired at sunrise. The concussion and reverberation from the report of the heavy gun shook the vessel till it creaked, and, in my half-slumbering condition, I wondered to myself whether it was not a real battle in which the vessel was engaged; but upon mature reflection and inquiry, I learned it was only the report of the sunrise gun.