...eir return, when they were fired at by the secessionists, and the fire was returned. Three of the volunteers were wounded, one severely.--N. Y. World, June 6. At 1 A. M., the Union force from Grafton , approached Philippi, a little town on the Monongahela, 20 miles south of Grafton, occupied by 1,500 rebels. Scouts went forward to reconnoitre, a favorable report was received, and the troops adv...