During the night of July 30th-31st the excitement began. Heavy small arm firing was indulged in by the enemy and from his lines came shells at irregular intervals, none of which did any damage. At this time Lieutenant Naylor was in the trenches with the two guns of Battery A. At 8 o'clock next morning Lieutenant Gibbs relieved him of the command with two-gun detachments of fresh men. All day everything was quiet. The enemy was planning a night attack, as he had no desire to mix with the American forces in a fair open fight in the broad light of day, but rather trusted to darkness to accomplish his designs. Everything was quiet until 11:30 that evening, when the Mausers began singing venomously from the Spanish lines. Then came the boom of his artillery and the men in the trenches knew that the time for action had come. The Tenth Pennsylvania troops replied with their Springfields and the whiz of the "45's" mingled with the keen "twang" of the Mausers, while the Third Artillerymen, equipped as regular infantry, took a part in the altercation. The instructions of the Utah men were not to fire until it was evident the enemy was making an advance. The cannoneers stood by their guns awaiting the orders which should make them a part of the fight. Finally it came. Major Cuthberton of the First California, the senior officer present, gave the word and then Utah's voice was heard for the first time during the war. The gunners worked like Trojans and with shrapnel punched at zero they sent shell after shell into the Castilian lines. Corporal Charles Varian, with no clothing on save a pair of trousers, sweating like a man who was working for his life, yet cool withal, managed his piece like a veteran. Sergeant J.O. Nystrom gave orders in a collected way that instilled fresh courage into the hearts of his men. W.W. Riter wore a seraphic smile as he sighted his gun at the spits of flame on the other side, while Billy Kneass worked his cannon with the sang froid of a man in a blind waiting for ducks. It was a warm time and when morning dawned it was ascertained that several Castilian voices had been added to Choral Society in that land beyond the river. Utah's men were standing their baptism of fire and proved themselves soldiers. All the terrible passion of war had supplanted the first feelings of timidity, and they manipulated their guns with as much composure as they would have handled the pigskins on the gridiron. But the ammunition was running short. Fifty-seven shrapnel had been discharged and the battle was still on. The Pennsylvania men had fired away nearly all their ammunition, and affairs began to look serious, when a body of men from Camp Dewey hauling a limber chest after them dashed from out the gloom. Once more across the intervening space the shells shrieked and broke the Spanish lines, causing havoc and terror. The attempt of the "Dons" had proved futile, and after having fought for two and a half hours they withdrew.