Massachusetts Regiment.

Meanwhile Tyler, discovering a favorable opening in the woods, "low down
on the bottom of the stream," for a couple of howitzers in battery,
sends Captain Ayres of the 5th U. S. Artillery, and a detached section
(two 12-pound howitzers) of his battery, with orders to post it himself
on that spot, and sends Brackett's squadron of the 2d Cavalry to his
support.

No sooner does Ayres open fire on the Enemy, than he awakens a Rebel
hornet's-nest. Volley after volley of musketry shows that the Bull Run
bottom fairly swarms with Rebel troops, while another Rebel battery,
more to the Rebel right, opens, with that already mentioned, a
concentrated cross-fire upon him.

And now Richardson orders up the 12th New York, Colonel Walrath, to the
left of our battery. Forming it into line-of-battle, Richardson orders
it to charge through the woods upon the Enemy. Gallantly the regiment
moves forward, after the skirmishers, into the woods, but, being met by
a very heavy fire of musketry and artillery along the whole line of the
Enemy's position, is, for the most part, thrown back in confusion--a
mere fragment* remaining in line, and retreating,--while the howitzers,
and Cavalry also, are withdrawn.

Meantime, however, Richardson has ordered up, and placed in
line-of-battle, on the right of our battery, the 1st Massachusetts, the
2d Michigan (his own), and the 3d Michigan. The skirmishers in the
woods still bravely hold their ground, undercover, and these three
regiments are plucky, and anxious to assault the Enemy. Richardson
proposes to lead them in a charge upon the Enemy's position, and drive