There was little time that could be employed by either side in caring for those who fell upon the fields of the almost uninterrupted fighting at Gettysburg. On the morning of the 4th, when Lee began to abandon his position on Seminary Ridge, opposite the Federal right, both sides sent forth ambulance and burial details to remove the wounded and bury the dead in the torrential rain then falling. Under cover of the hazy atmosphere, Lee was getting his whole army in motion to retreat. Many an unfinished shallow grave, like the one above, had to be left by the Confederates. In this lower picture some men of the Twenty-fourth Michigan infantry are lying dead on the field of battle. This regiment--one of the units of the Iron Brigade--left seven distinct rows of dead as it fell back from battle-line to battle-line, on the first day. Three-fourths of its members were struck down. [Illustration: MEN OF THE IRON BRIGADE] [Illustration: THE FIRST DAY'S TOLL COPYRIGHT, 1911, PATRIOT PUB. CO.] The lives laid down by the blue-clad soldiers in the first day's fighting made possible the ultimate victory at Gettysburg. The stubborn resistance of Buford's cavalry and of the First and Eleventh Corps checked the Confederate advance for an entire day. The delay was priceless; it enabled Meade to concentrate his army upon the heights to the south of Gettysburg, a position which proved impregnable. To a Pennsylvanian, General John F. Reynolds, falls the credit of the determined stand that was made that day. Commanding the advance of the army, he promptly went to Buford's support, bringing up his infantry and artillery to hold back the Confederates. [Illustration: McPHERSON'S WOODS] At the edge of these woods General Reynolds was killed by a Confederate sharpshooter in the first vigorous contest of the day. The woods lay between the two roads upon which the Confederates were advancing from the west, and General Doubleday (in command of the First Corps) was ordered to take the position so that the columns of the foe could be enfiladed by the infantry, while contending with the artillery posted on both roads. The Iron Brigade under General Meredith was ordered to hold the ground at all hazards. As they charged, the troops shouted: "If we can't hold it, where will you find the men who can?" On they swept, capturing General Archer and many of his Confederate brigade that had entered the woods from the other side. As Archer passed to the rear, Doubleday, who had been his classmate at West Point, greeted him with "Good morning! I'm glad to see you!" [Illustration: FEDERAL DEAD AT GETTYSBURG, JULY 1, 1863 COPYRIGHT, 1911, PATRIOT PUB. CO.]