Headquarters 27th Regt. U.S.C.T.Camp Near Raleigh, N.C., April 26, 1865 Mr. Editor: On the 20th of this month I, together with some of our boys, went on a foraging expedition. We had travelled some twenty miles when we came within two hundred yards of the main line of works of the rebel Gen. Johnston. We immediately came to a halt and lay down, and soon after spied three rebel officers coming out on the road towards us. We then made our way into a swamp not far off. They proved…