...er was a fierce bombardment by day and night, in which from July 7th to July 31st inclusive, 7,000 shot and shell took effect. On the 7th the flag was cut down three times. On the 20th Commandant Mitchel , one of the most gallant officers of the artillery service, was mortally wounded while making an observation from the highest point of the fort. Capt. John Johnson, the faithful engineer-in-chief, ...