Intelligence was received this morning, that a brig, which was lately taken laden with provisions, and carried into Boston by ministerial pirates, returned from thence to Norfolk last Wednesday [August 9], having on board seven officers of the regular army. We do not hear that any soldiers are come with them, or are to follow; but it is certain that the Earl of Dunmore's ship is now completed for an expedition, and that his Lordship has fitted up thirteen field pieces for service. It is apprehended he intends to commence hostilities upon York or James river very soon.