[Detritus of war within the earthworks after the surrender of the Confederates at Port Hudson, Louisiana]

[Union sailors preparing to engage the Confederates at Battery 10 during the siege in May and June of 1863, Port Hudson, Louisiana]

[Damage to Confederate fortifications at Port Hudson after the siege]

In the background is the "17 gun Union Battery"...In the foreground is shown the interior of the right flank defences of the rebel works...

15-inch (i.e. 13-inch) mortar, "Dictator" in the works in front of Petersburg, Va. View from the north, September 1, 1864