...valley. Sheridan has fallen back to the Opequan, and has fortified his position somewhere near Smithfield, with the railroad to supply him from Harper's Ferry. Under these circumstances, and with Loudon and Fauquier similarly devastated, I don't see how the Rebels can try it again in that direction this fall, and my judgment is clear that Crook with his force will be ample to do all that is needed. ...