The End of the Gray Line at Cold Harbor. Here at the extreme left of the Confederate lines at Cold Harbor is an example of the crude protection resorted to by the soldiers on both sides in advance or retreat. A momentary lull in the battle was invariably employed in strengthening each position. Trees were felled under fire, and fence rails gathered quickly were piled up to make possible another stand. The space between the lines at Cold Harbor was so narrow at many points as to resemble a road, encumbered with the dead and wounded. This extraordinary proximity induced a nervous alertness which made the troops peculiarly sensitive to night alarms; even small parties searching quietly for wounded comrades might begin a panic. A few scattering shots were often enough to start a heavy and continuous musketry fire and a roar of artillery along the entire line. It was a favorite ruse of the Federal soldiers to aim their muskets carefully to clear the top of the Confederate breastworks and then set up a great shout. The Confederates, deceived into the belief that an attack was coming, would spring up and expose themselves to the well-directed volley which thinned their ranks. COLD HARBOR [Illustration: WHERE TEN THOUSAND FELL COPYRIGHT, 1911, PATRIOT PUB. CO.] The battle of Cold Harbor on June 3d was the third tremendous engagement of Grant's campaign against Richmond within a month. It was also his costliest onset on Lee's veteran army. Grant had risked much in his change of base to the James in order to bring him nearer to Richmond and to the friendly hand which Butler with the Army of the James was in a position to reach out to him. Lee had again confronted him, entrenching himself but six miles from the outworks of Richmond, while the Chickahominy cut off any further flanking movement. There was nothing to do but fight it out, and Grant ordered an attack all along the line. On June 3d he hurled the Army of the Potomac against the inferior numbers of Lee, and in a brave assault upon the Confederate entrenchments, lost ten thousand men in twenty minutes. [Illustration: FEDERAL CAMP AT COLD HARBOR AFTER THE BATTLE COPYRIGHT, 1911, PATRIOT PUB. CO.]