The monotony of camp life was broken by frequent picket duty. This was sometimes dangerous and often trying, especially to the non-commissioned officers on whom special responsibility rested; yet in pleasant weather at least, it was a welcome change from the dull routine of camp. It was also an essential part of our education. Pickets are the antennæ of an army. In the face of the enemy the antennæ become formidable as skirmishers. A picket line, in case of need is quickly transformed into a skirmish line. Nothing teaches vigilance, the use of independent judgment, prompt action in emergency, and at the same time strict subordination, like outpost or skirmish work. We had some exciting and some amusing experiences. One night the line ran through a swamp. It was moonlight, and in the small hours toward morning things looked weird and ghostly. In visiting my sentries I came to one of our boys, a mere stripling, whom I found in a state of high excitement. "Serjeant", he said, "I wish I could be relieved; I'm afraid to stay here." I asked him what the trouble was and he answered, "There's a wolf out there," pointing to a dismal clump of bushes. "I saw him come out of the woods and go across the swamp into those bushes. He was close to me. I do wish I could be relieved; I'm afraid to stay here alone!" I knew it was a trick of the imagination, or possibly a stray fox, and told him so; but it was of no use. The poor fellow's terror was pitiful. Yet that same boy was afterward as bold as a lion when bullets were flying thick and men were falling about him.