[Machias] Saturday Sept. 6 . . . A privateer commanded by Capt. Jerry [Jeremiah] O'Brien² arrived here, brought some papers, none of very late date, also a letter giving information that a gentleman escaped from the enemy off Cape Sables, a few days ago, that a reinforcement of 400 men, under convoy of the Milford, were coming to join these under the Rainbow, commodore G. Collier, to make a second attemp on this place. How vain are our hopes! how changable are our fates, when we think ourselves most secure, we are most in danger. . . .