period, his cool judgment seemed for once in his life, perhaps for the
only time, to be disturbed. The truth is that Mr. Lincoln was a sure and
safe, almost an infallible thinker, when he had time given him; but he
was not always a quick thinker, and on this occasion he was driven to
think quickly. In consequence he not only erred in repudiating the
opinions of the best military advisers, but even upon the basis of his
own views he made a mistake. The very fact that he was so energetic in
the endeavor to "trap" Jackson in retreat indicates his understanding of
the truth that Jackson had so small a force that his prompt retreat was
a necessity. This being so, he was in the distinct and simple position
of making a choice between two alternatives, viz.: either to endeavor to
catch Jackson, and for this object to withhold what was needed by and
had been promised to McClellan for his campaign against Richmond; or,
leaving Jackson to escape with impunity, to pursue with steadiness that
plan which it was Jackson's important and perfectly understood errand to
interrupt. It is almost incredible that he chose wrong. The statement of
the dilemma involved the decision. Yet he took the little purpose and
let the great one go. Nor even thus did he gain this lesser purpose. He
had been warned by McDowell that Jackson could not be caught, and he was
not. Yet even had this been otherwise, the Northerners would have got
little more than the shell while losing the kernel. Probably Richmond,
and possibly the Southern army, fell out of the President's hand while
he tried without success to close it upon Jackson and 15,000 men.

The result of this civilian strategy was that McClellan, with his
projects shattered, was left with his right wing and rear dangerously
exposed. Jackson remained for a while a mysterious _bête noire_, about
whose force, whereabouts, and intentions many disturbing rumors flew
abroad; at last, on June 26, he settled these doubts in his usual sharp
and conclusive way by assailing the exposed right wing and threatening