July 5.—Yesterday M. P. and myself spent several hours riding about to visit our friends. The news of the day was, that General Patterson, with a large force, had crossed the river and taken possession of Martinsburg, and that General Johnston had sent Colonel Stuart, with his cavalry, to reconnoitre and cut off his supplies, and to prevent a retreat. All these things make us anxious, particularly as the booming of cannon is not unfrequent; but my faith in the justice of our cause is strong.