Harlem.—After the battle of Long Island the British commissioners made overtures to Congress and a committee composed of Franklin, Edward Rutledge, and John Adams went to Staten Island for a conference, but it failed completely. There was nothing to do but to fight it out. That Manhattan Island should have been abandoned immediately after the defeat at Brooklyn Heights has been maintained by strategists, but Congress hesitated to evacuate New York City and Washington does not appear to have insisted upon a withdrawal. As Trevelyan observes, "It is equally difficult to explain satisfactorily why Howe was so long about landing..., and why Washington was so slow in evacuating the city." On September 10 Hancock informed Washington that Congress did not desire to have him hold the city longer than he thought proper. Washington immediately acted. The removal of stores was hastened and most of the troops were withdrawn to Harlem Heights about halfway up the island, but Putnam was left in the city with some infantry and artillery, and five brigades were posted at points along the eastern shore. Not until September 13 did the British begin the movement for the occupation of Manhattan Island. On that day and the next several war vessels moved up into the East River and at eleven o'clock on the morning of the fifteenth British forces landed at Kip's Bay. There the American troops disgraced themselves by slight resistance followed by a confused flight. Howe neglected to follow up his initial success; had he done so he could have cut off the garrison of New York, but his procrastination allowed Putnam's force to rejoin the main army. Not until four in the afternoon did the British commence "a stately progress northward" and not until the next morning did they attack the American position. This time Washington's troops behaved well and the British were checked.
White Plains.—For four weeks the British army remained in front of the American position at Harlem. Howe finally decided upon his plan of campaign; leaving a force to protect New York City, on October 12 he moved his main army to the Westchester Peninsula with the object of getting on the flank and rear of the American army, and cutting off its supplies from the east; war ships were sent up the Hudson to cut off a retreat into New Jersey. After his landing on the peninsula Howe's movements were very slow and it was not until October 25 that he took up a position a few miles south of White Plains, The dilatory movement had given Washington the opportunity of moving his army to the mainland, and when Howe finally arrived near White Plains, he found the American army blocking his advance.
The British commander had just been heavily reinforced and his overwhelming army should have made short work of Washington's forces, but again Howe failed to win a decisive victory. On October 28 he ordered a general engagement and the first assault drove in the American outposts. A mile to the west of the main position was Chatterton's Hill which was held by fourteen hundred men. Against this hill Howe sent eight regiments. Five which advanced for a frontal attack were checked and the defenders only retired when outflanked by the other three. A general engagement did not develop and on October 31 Washington retired to a line of heights somewhat back of his former position.
Northern New Jersey, New York and Its Environs during the Revolution (Based on map in G.O. Trevelyan, The American Revolution, Part II, Vol. I, at end).
The withdrawal from Quebec.—While Washington's army rested at White Plains, heartening news came from the north; and especially good news it was, for during the summer the reports from the Canadian border had been filled with stories of defeat and distress. Congress had made great efforts to reinforce the army before Quebec, but on May 1 when General Thomas arrived to take command, he had found less than two thousand men assembled and half of them were in the hospitals. Within a week the first British reinforcements arrived and Carleton took the offensive. Thomas was forced to fall back to Sorel and the Americans were driven from their camp near Montreal.
The army falls back to Crown Point.—On June 5 General John Sullivan arrived at Sorel with three thousand troops. As Thomas had died of the smallpox Sullivan took command. He determined to attack Three Rivers but the surprise failed and his troops were routed. On June 14 an English fleet carrying Carleton's army came up the river. Sullivan immediately broke up his camp and retired to Crown Point, where for the time being he was out of reach of the enemy, for Carleton's vessels were of too deep draft to navigate the Sorel River. But disease proved to be more dangerous than the British, for smallpox and dysentery carried off the men by hundreds.
Ticonderoga becomes the base.—General Philip Schuyler was in command of the northern department with headquarters at Albany and General Horatio Gates was now in charge at Crown Point. In July Gates withdrew most of the depleted force to Ticonderoga. Large numbers of troops were sent north so that by August the garrison numbered thirty-five hundred. Arnold equipped a fleet of small vessels which he hoped would delay if it would not check the British advance.
Valcour Island.—During the summer Carleton's shipyard at St. Johns was busy building the fleet which would give him control of Lake Champlain. On October 4 Carleton advanced with an army of twelve thousand men. Arnold started with his fleet manned by only five hundred men to harass the advance. He ran into the narrow channel between Valcour Island and the western shore and there on October 11 encountered the light advance craft of the British fleet. For five hours he held his own. During the night he withdrew his shattered boats to an island twelve miles to the south where he attempted to repair the damage. On October 13 when the fog lifted, it disclosed the British fleet. Arnold immediately sent off his best vessels and with his crippled ships stayed to fight. One vessel struck its colors but Arnold ran his flag ship and four gondolas into a creek and burned them. He then hastened to Ticonderoga where he displayed tremendous energy in strengthening the fortifications. The spirited fight on the lake, the strength of the American position, and the lateness of the season convinced Carleton that it was useless to continue the operations. On November 3 he evacuated Crown Point and began the withdrawal to Canada. Washington was thus relieved from the danger of an enemy from the north.