It is well known to those familiar with events at the beginning of the war, that the Washington authorities decided to change McClellan's base of operations in the movement against the rebel capital (Richmond, Va.), to the Peninsula. Accordingly, in the spring of 1862, over one hundred thousand men and material of the Army of the Potomac, at that time, and subsequently, the largest and best disciplined body of troops in the service of the Republic, were sent by water to Fortress Monroe, Ship Point, and adjacent places for disembarkation. Very few people in civil life have any conception of the labor attending an operation of this kind. Not alone was this immense body of men carried by water, but all the material as well: heavy and field artillery; animals for the same; horses for the cavalry; and baggage, ammunition and supply trains. Thanks to the superiority of our navy at the time, the movement was entirely successful. It is true a few sailing crafts, and some armed rebel vessels showed themselves; but they took refuge up the York, Pamunkey, Elizabeth and James Rivers, to be afterwards destroyed as the Union Army advanced. The writer was at the time on detached service (recruiting) in New York City; but at the period the advanced vessels of the Flotilla reached the Peninsula he received orders to rejoin his regiment. Accordingly I left Albany (depot for recruits) April 11, 1862, in charge of twenty-two men, eleven for Sixty-Third and eleven for Eighty-Eighth Regiments, reaching Fort Monroe April 14, by steamer from Washington. I shall never forget the impression made on my civilian mind as we steamed under the frowning guns of the weather-beaten Fort, in the gray of the morning. It impressed me with awe, as the black muzzles of the "War Dogs" bade defiance in their silent grandeur to rebels in arms and European enemies, who, at the time, entertained anything but friendly feelings towards the Republic.