Caption: Charge of the Black Horse Cavalry upon the Fire Zouaves at the Battle of Bull Run. See page 510 [for related story].
Source: Illustration from Harper's Weekly, August 10, 1861, page 501.
The 11th New York Volunteer Infantry Regiment was known as the Fire Zouaves or the Ellsworth Zouaves. More about the Zouaves.
Note: An illustration of this event also appeared in New York Illustrated News on August 5, 1861.