...s we have said, had been detached to Thoroughfare Gap by McDowell. Porter was ordered to Manassas. Finally, Pope, fearing lest Jackson should escape him, continued his march upon Centreville with Heintzelman 's and Reno's corps, and suffered himself to be led more and more astray by Hill's manoeuvre. While these movements were in process of accomplishment, Jackson took the position we have indicated, ...