While the main army was thus circumvallating St. John's, but, for want of ammunition and heavy guns, unable to breach the walls, small detachments of Americans, who were joined by many friendly Canadians, were active in the vicinity. One, under Ethan Allen, attempted the capture of Montreal. Of this foolish expedition I shall hereafter write. But another, and a successful one, was undertaken, which hastened the termination of the siege of St. John's. Carleton, supposing that the fort at Chambly, twelve miles northward, could not be reached by the Americans unless the one at St. John's was captured, had neglected to arm it, and kept but a feeble garrison there. Montgomery was informed of this by Canadian scouts, and immediately sent Colonel Bedell of New Hampshire, Major Brown of Massachusetts, and Major Livingston of New York, with detachments, to capture the fort. The method of attack was planned by Canadians familiar with the place. Artillery was placed upon bateaux, and during a dark night was conveyed past the fort at St. John's to the head of Chambly Rapids, where it was mounted on carriages and taken to the * Montgomery's dispatch to General Schuyler. Attack upon and Surrender of Fort Chambly.--Repulse of Carleton at Longueuil.--Surrender of St. John's.--The Spoils 171point of attack. The garrison made but a feeble resistance, and soon surrendered. This was a most important event, for it furnished Montgomery with means to carry on the siege of St. John's vigorously. ** The large quantity of ammunition that was captured was sent immediately to the besiegers, who, by vigorous exertions, erected a strong battery within wo hundred and fifty yards of the fort. A strong block-house was also erected before it, in the opposite side of the river. The former was mounted with four guns and October 30. six mortars, and the latter had one gun and two mortars.