Letters to AUGUST 7, 1861—6.45 a. m

Geo. A. Mccall to AUGUST 7, 1861—6.45 a. m, August 6, 1861

Washington, D. C., August 6, 1861. Brig. Gen. I. MCDOWELL, r Comdg. Department of Northeastern Virginia, Arlington, Va.: Information I have received induces me to eaution you to be carefully…