By the most authentic advices from the Camp at Cambridge, we are informed, that about the 27th ult. Capt. Adams, in the armed schooner Warren, belonging to the United Colonies, took a large schooner laden with fruit and vegetables of various kinds bound for Boston. ¹ That on the 27th of the same month Capt. Manly, of the armed schooner Lee, belonging to the United Colonies, observing a fleet of vessels bound into Boston, found means to separate a large brigantine mounting two fine brass six pounders, and a sloop which served as a tender from their convoy, took them both and carried them into Cape Ann, ² where the brigantine, when these advices came away, was discharging as fine a collection of military stores (powder excepted) as ever was sent to this country, the value estimated at £20,000 currency ー but to our army inestimable. As this capture was made in sight of the other vessels, and at no great distance from Boston, there was reason to apprehend a violent effort would be made to recover it, to prevent which, General Washington ordered four companies to march immediately to cover the unlading the vessel. Teams were impressed from all quarters to bring away the stores, and Col. Glover, in the mean time, to raise the Minute Men in the neighbourhood of Cape Ann, for their immediate security.

That Capt. Manly narrowly missed taking the vessel containing their whole ordnance store, she being just a head; but the present capture is the most seasonable and providential supply that any army ever met with, containing (except powder) the very kind of military stores that was wanting for immediate service.