.... Orders were therefore dispatched to McCook, who was supposed to be about seven miles back, on the left, and to Thomas, who had been ordered to halt the right corps (Crittenden's) for the night at Haysville , about four miles in rear, on the road from Lebanon to Perryville. They were to march precisely at 3 o'clock in the morning, prepared in every respect for battle, and on arriving at certain designa...