When the deliberations of the senators were "war estimates," arming of troops, and hurrying them to the "front" with all possible despatch. When the city of Washington presented all the appearance of a place threatened with a siege. When every unoccupied building was turned into barracks, and every piece of unoccupied land was made a "camp ground." When the inhabitants were in terror and dismay, dreading the approach of an invading host. When hasty earth-works were thrown up in front of the city, and the heights were bristling with cannon. When the woods and peach orchards on the opposite side of the Potomac were red with the glare of the camp fires at night, and the flashing of bayonets was almost blinding in the hot sun at noon. When the vessels sailing on the river were laden with armed men, shot, shell, and "villainous saltpetre." When the incessant roll of drums and rattle of musketry deadened almost every other sound. When sentinels guarded every road and access to the capital, and passports were required from the military authorities to enable you to move from one place to another. In short, when the whole atmosphere was filled with sounds of martial strife, and everything took the form of desolating war. In spite of all these untoward events, I found photography actively engaged in the city, in the camp, and on the field, fulfilling a mission of mercy and consolation in the midst of carnage and tumult--fulfilling such a mission of holy work as never before fell to the lot of any art or art-science to perform. For what aspect of life is photography not called upon to witness?--what phase of this world's weal or woe is photography not required to depict? Photography has become a handmaiden to the present generation--a ministering angel to all conditions of life, from the cradle to the grave. An _aide-de-camp_ of the loveliest character to the great "light of the world," humanizing and elevating the minds of all, administering consolation to the sorrowing, increasing the joy of the joyous, lessening the pangs of separation caused by distance or death, strengthening the ties of immediate fellowship, helping the world to know its benefactors, and the world's benefactors to know the world. When grim death stalks into the gilded palaces of the great and powerful, or into the thatched cottages and miserable dwellings of the poor, photography is the assuager of the griefs of the sorrowing survivors, and the ameliorator of their miseries, by preserving to them so faithful a resemblance of the lost one. When the bride, in her youth and loveliness, is attired for the bridal, photography is the recorder of her trustful looks and April smiles, the fashion of her dress, the wreath and jewels that she wore; and, come what change in her appearance that may, the husband can look upon his bride whene'er he likes in after years, as vividly and as distinctly as on that day, connecting the present with the past with a kind of running