After the evacuation of Boston by the British forces, General Washington proceeded, at once, with the continental army to the city of New York, where he arrived on the 13th of April, 1776. The loss of the battle of Long Island on the 27th of August, and the extreme improbability of his being able to hold the city against the superior forces by which it had been invested through the entire summer, made it necessary for him to appeal once more to the Congress for the organization of a permanent army, capable of offering effectual resistance to the enemy. The establishment formed at Cambridge in the autumn previous was to continue for one year only; it was about to be dissolved; and in the month of September General Washington was compelled to abandon the city of New York to the enemy. Before he withdrew from it, he addressed a letter to the President of Congress, on the 2d of September, in which he told that body explicitly that the liberties of the country must of necessity be greatly hazarded, if not entirely lost, should their defence be left to any but a permanent standing army; and that, with the army then under his command, it was impossible to defend and retain the city.[104] On the 20th of the same month, he again wrote, expressing the opinion that it would be entirely impracticable to raise a proper army, without the allowance of a large and extraordinary bounty.[105] At length, when he had retreated to the Heights of Haerlem, and found himself surrounded by a body of troops impatient of restraint, because soon to be entitled to their discharge, and turbulent and licentious, because they had never felt the proper inducements which create good conduct in the soldier, he made one more appeal to the patriotism and good sense of the Congress. Few documents ever proceeded from his pen more wise, or evincing greater knowledge of mankind, or a more profound apprehension of the great subject before him, than the letter which he then wrote concerning the reorganization of the army.[106]