Potomac and joined General Lee
It cannot, therefore, by properly said that Lee
had these two brigades of cavalry available to mask his movements and keep him informed of the enemy's movements during the absence of Stuart
If they were not available because of failure to obey orders, Stuart
must have erred in the selection of the officer whose duty it was to carry them out.
To facilitate comparison of the two reports, in so far as they relate to the cavalry, the following extracts from them are given in alternate quotations from each report, under nine different headings, as follows:
（1) Cavalry was directed to hold the mountain passes until the enemy crossed the Potomac
was left to guard the passes of the mountains and observe the movements of the enemy, whom he was instructed to harass and impede as much as possible, should he attempt to cross the Potomac