We observe, in General Washington's letter, that the Americans, "farcical enough," "without knowing or intending it," led the Boston gentry to imagine them about to surrender, because a Union flag was displayed, which was only displayed in compliment to the United Colonies on the day the army, organized under the orders of Congress, _subsequent_ to the union of the thirteen colonies, came into being. And, in the extract from the newspaper account of this, that the flag was displayed on Prospect Hill, and that it must have been a peculiarly marked Union flag, to be called The Great Union Flag. As this was the name given to the national banner of Great Britain, this indicates this flag as the national banner of the United Colonies. Lieutenant Carter, a British officer, very naturally explains both these circumstances. He was on Charlestown Heights, and says: January 26, 1776: "The king's speech was sent by a flag to them on the 1st inst. In a short time after they received it, they hoisted an Union flag (above the continental with thirteen stripes) at Mount Pisgah; their citadel fired thirteen guns, and gave the like number of cheers."[43] [43] Siege of Boston, p. 283. This account of the flag, from Lieut. Carter, is corroborated by the following from the captain of an English transport, to his owners in London, when taken in connection with the extract subjoined to it, taken from the _British Annual Register_ for 1776. The captain writes:-- "BOSTON, Jan. 17, 1776. "I can see the rebels' camp very plain, whose colors, a little while ago, were entirely red; but, on the receipt of the king's speech (which they burnt), they have hoisted the Union Flag, which is here supposed to intimate the union of the provinces."[44] [44] American Archives, 4th series, vol. iv. p. 711. The _Annual Register_ says: "The arrival of a copy of the king's speech, with an account of the fate of the petition from the Continental Congress, is said to have excited the greatest degree of rage and indignation among them; as a proof of which, the former was publicly burnt in the camp; and they are said, on this occasion, to have changed their colors from a plain red ground, which they had hitherto used, to a flag with thirteen stripes, as a symbol of the number and union of the colonies."[45] [45] British Annual Register, 1776, p. 147.