THE scouts and guides of the Civil War saved the armies from many defeats by their shrewdness and bravery. Upon them rested the great responsibility of leading the soldiers through the unknown country to advantageous and safe positions. During the Peninsula campaign in 1862 a group of these men sat before one of Brady's cameras. A photograph was also secured at a reserve picket station near the Potomac. The advance picket was a short distance ahead and upon the approach of the enemy began firing, and gradually fell back on these reserves, who keep up a continuous fire as they retire slowly, fighting as they go, giving time for the army to form into line for battle. About this same time an excellent picture was secured of "Fighting Joe" Hooker standing beside his horse. Hooker was seriously wounded at Antietam and borne from the field. Still another photograph shown here is the "Sunken Road" or "Bloody Lane" at Antietam, in which the Confederate dead lay three deep for a distance of half a mile. This ditch was used by the Confederates as a rifle pit. A Union battery succeeded in getting an excellent range of the road and this view, taken the day after the battle, shows the dead just as they fell. It is a scene of slaughter that few men have ever seen and its horrors are here preserved in detail by the camera. [Illustration: DEAD IN SUNKEN ROAD AFTER BATTLE OF ANTIETAM] STONEWALL JACKSON, in speaking of the battle of Antietam, said: "The carnage on both sides was terrific. The hottest fight seemed to center about Dunker Church, where there were no less than four charges and counter-charges. Each army had taken and retaken the ground until it was literally carpeted with dead and dying men." The Confederates posted a battery of light artillery outside of the little building used for religious services by the sect known as the Dunkers. This photograph shows where one gun of the battery stood. The dead artillerymen and horses, and the shell-holes through the little church, prove how terrible a fire was rained onto this spot by the Union batteries. Another view on this page shows the dead collected for burial after the battle of Antietam. The wounded were taken from the battlefield to an improvised hospital which consisted of canvas stretched over stakes driven into the ground. A view is here given of one of these hospitals in which wounded Confederate prisoners are being relieved of their suffering. One of the most interesting of these photographs is Burnside Bridge. With fixed bayonets the Union soldiers started on their mission of death, rushing over the slope leading to the bridge, and engaging in fierce combat with the enemy. The fire that swept it was more than they could stand and they were obliged to retire. Two heavy guns were placed in position and aimed upon the Confederates. In a maddening charge, the bayonets again flashed in the light and the Union soldiers swept