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First day's bombardment, Federal Schooners off Forts Jackson and St. Philip, commanding the passage of the river. The Federal offensive force consisted of six sloops of war, sixteen gunboats and twenty-one mortar vessels. These were accompanied by a large number of storeships, tenders, etc. On the 18th of April, they anchored three miles below Forts Jackson and St. Philip, and prepared for active operations. Captain Porter, commanding the mortar flotilla, wishing to ascertain their range before his actual attack, stationed the <em>Arietta, John Griffiths<em> and <em>Orvetta<em> about two and a half miles from the forts. The <em>Arietta<em> fired the first shot, to which Fort Jackson replied. The Confederate shots fell short more than fifty yards every time, while the effect of our shells on the fort was such that after two explosions the enemy retired from their barbette guns, and afterward only used those in the casemates.

The Great Naval Battle on the Mississippi

First day's bombardment, Federal Schooners off Forts Jackson and St. Philip, commanding the passage…

A war ship with a high poop deck.

War Ship

A war ship with a high poop deck.