...r rear and that of the Second corps on the Boydton plank road open, and will require great vigilance on your part. If you have sent the brigade down the Boydton plank, it should not go further than Gravelly run , as I don't think it will render any service but to protect your rear. These orders were indeed in accordance with the tenor of Grant's earlier dispatches before he knew of Sheridan's danger. S...