plans for a general engagement, and that it gave him time, then his greatest need, for the concentration of the three Confederate armies for the final struggle.
While providing for and awaiting the general attack, Beauregard
was, on the 19th, urged by Adjutant-General Cooper
to withdraw his call upon Johnston
for assistance if the enemy in front of him had abandoned an immediate attack.
As this was not an order, Beauregard
paid no attention to it, and continued his efforts to secure the early arrival of Johnston
's forces, intending, with their help, to take the offensive.
spent the 19th and 20th reconnoitering the Confederate
front and waiting for rations.
During these two days, 8,340 of Johnston
's men with twenty guns, and 1,265 of Holmes
', with six guns, arrived upon Beauregard
's left and right; the larger number of them in the afternoon of the 20th.
Most of these were ordered to the Confederate
left-center and left, at the instance of General Johnston
, as Beauregard
had placed the most of his own army on his right-center and right, expecting, from McDowell
's demonstrations of the 18th, that his main effort would be to turn the Confederate
right by marching southward to Union Mills
, in the rear of which McDowell
had established his headquarters, and around which he had massed his troops, seven public roads diverge to the principal points of the compass, and from each of these, at no great distance from that village, other roads diverge to intermediate points, until not less than a dozen roads lead from that village, crossing Bull run
at nearly as many fords, making it an extremely difficult matter to watch the movements of an army there concentrated and having for its objective the southwestern side of Bull run
A circle with a radius of 3 miles from Centreville
will pass through or near ten of these fords, from Mc-Lean's on the southeast to Poplar on the northwest.
, in this interval of 6 miles of arc, nearly follows the three-mile circle drawn around Centreville
A circle with 7 miles of radius, drawn around the same center, crosses Bull run
to the south of Centreville
, near Union Mills
and the bridge of the Orange & Alexandria railroad; about 9 1/2 miles away to the northwest it crosses the Sudley ford
of Bull run
; and from that ford, back toward the beginning, in a distance of 3 miles, it passes directly through the field of the 21st.