The Hudson is beautiful in winter as well as in summer, and I wonder its various and picturesque beauties have not been photographed more abundantly. But there it is. Prophets are never honoured in their own country, and artists and photographers never see the beauties of their country at home. I am sure if the Hudson were photographed from the sea to its source it would be one of the most valuable, interesting, and picturesque series of photographs that ever was published. Its aspects in summer are lovely and charming, and the wet process can then be employed with success. And in winter, though the temperature is low, the river is perfectly dry on the surface, the hills and trees are glistening with snow and icicles, the people are on the very happiest terms with one another, and frequently exhibit an abundance of dry, good humour. This is the time to work the "dry process" most successfully, and, instead of the "ammonia developers," try the "hot and strong" ones. With these few hints to my photographic friends, I leave the beauties of the Hudson to their kind consideration.--_British Journal of Photography_, 1865. PICTURES OF THE POTOMAC IN PEACE AND WAR. When first I visited that lovely region which has so recently been torn and trampled down--blackened and defaced by the ruthlessness of war--peace lay in the valleys of the Potomac. Nothing was borne on the calm, clear bosom of the broad and listless river but the produce of the rich and smiling valleys of Virginia. Its banks were peaceful, silent, and beautiful. The peach orchards were white with the blossoms that promised a rich harvest of their delicious fruit. The neat and pretty houses that studded the sloping boundaries of the river were almost blinding with their dazzling whiteness as the full blaze of the sun fell upon them. Their inhabitants were happy, and dreamt not of the storm so soon to overtake them. The forts were occupied by only a few, very few soldiers. The guns were laid aside, all rusty and uncared for; and pilgrims to the tomb of Washington, the good and great, stopped on their return at Fort Washington to examine the fortifications in idleness and peaceful curiosity. The Capitol at Washington echoed nothing but the sounds of peace and good will. The senators of both North and South sat in council together, and considered only the welfare and prosperity of their great confederation.