The two regiments on the right accordingly withdrew, but the 147th New York, which was next to the road, did not receive the order, as their Colonel was shot down before he could deliver it.

They were at once surrounded and very much cut up before they could be rescued from their perilous position.
The two regiments on the right, which were forced back, were veterans, conspicuous for gallantry in every battle in which the Army of the Potomac had been engaged since the Peninsula campaign.
As Wadsworth withdrew them without notifying Hall's battery in the road, or the two regiments posted by Reynolds on the left, both became exposed to a disastrous flank attack on the right.

Hall finding a cloud of skirmishers launched against his battery which was now without support, was compelled to retreat.

The horses of the lost gun were all shot or bayonetted.

The non-military reader will see that while a battery can keep back masses of men it cannot contend with a line of skirmishers.