About two months after we entered the city of Mexico, it was reported to me, by the sergeant of the guard, that Artificer Gerber was then absent, two hours beyond the time limit of his pass. I directed the sergeant to send Gerber to me, in my quarters, as soon as he returned. Frederick W. Gerber was one of the four men, enlisted by Captain Swift, who had served in the old regular army. He was enlisted as musician, and was the finest bugler in the service. He was soon made company clerk, and had thorough knowledge of routine "company papers". He was German by birth. As company clerk his duties brought him in close relations with the commander of the company; and I soon formed a very high estimate of his qualities as a soldier--and as a man in every respect; except that he would, on occasion, at intervals, when off duty, indulge too freely in strong drink. I had repeatedly threatened to deprive him of his warrant as artificer, if he did not quit drinking to excess; but I was reluctant to do so, especially because his promotion to that grade was in reward for distinguished gallantry in the attack on the "key-point" of the Mexican position at the battle of Cerro Gordo. When it was reported to me that he had not returned within the time of his "pass", I was quite sure he was again "on a spree". It was several hours later when he reported to me as ordered by the sergeant of the guard. I was alone when he entered my room. He had evidently been drinking to excess; but was to some extent recovering. I charged him with being drunk; told him he had behaved so well in that respect lately that I had made up my mind to recommend his being promoted to the grade of corporal; and even to that of sergeant, when opportunity was afforded me, and added: "You know I cannot make such recommendation whilst you continue this habit of getting drunk". He replied: "The lieutenant is mistaken; I am not drunk, and, if he will allow me, I will satisfy him on that point; and explain to him how I happened to overstay my pass". I told him to go on with his explanation.