In spite, however, of weather, hunger, and fatigue, there was many a brave man in the American camp who kept up heart and obeyed all orders with spirit. One thing is certain, the British were not permitted to suspect the distressed condition of our army. Our pickets and riflemen, thrown out in front of the works, put on a bold face. On the 28th there was skirmishing the greater part of the day, and in the evening, as Washington reports, "it was pretty smart." Writing from the trenches on the 29th, Colonel Silliman says: "Our enemy have encamped in plain sight of our camp at the distance of about a mile and a half. We have had no general engagement yet, but no day passes without some smart and hot skirmishes between different parties, in which the success is sometimes one way and sometimes another. We are in constant expectation of a general battle; no one can be here long without getting pretty well acquainted with the whistling of cannon and musket shot." Scarcely any particulars of these encounters[162] are preserved, though one of them, at least, appears to have been quite an important affair. The enemy had determined to approach the lines by regular siege rather than hazard an assault, and late in the afternoon of the 28th they advanced in some force to break ground for the first parallel. The point selected was doubtless the high ground between Vanderbilt and Clinton avenues, on the line of De Kalb. As to what occurred we have but the briefest account, and that is from the pen of Colonel Little. "On the morning of the 28th," he writes, "the enemy were encamped on the heights in front of our encampment. Firing was kept up on both sides from the right to the left. Firing on both sides in front of Fort Putnam. About sunset the enemy pushed to recover the ground we had taken (about 100 rods) in front of the fort. The fire was very hot; the enemy gave way, and our people recovered the ground. The firing ceased, and our people retired to the fort. The enemy took possession again, and on the morning of the 30th [29th] had a breastwork there 60 rods long and 150 rods distant from Fort Putnam." It was this move of the British, more than any incident since the battle, that determined Washington's future course.