.... Order him to advance very carefully and not to attack. I had recently read accounts of the affair at Big Bethel, Va., June 10, in which Magruder had repulsed Butler, whose troops fell back to Fortress Monroe in a panic, though entirely unpursued. I noted two facts: (1) That Magruder's cavalry, which had been ordered to pursue, had allowed itself to be bluffed by Greble's U. S. Battery. This was entir...