of stone, brick and mortar.
Note.--As the Tennessee was the most powerful and remarkable vessel the Confederates ever built, the scientific reader may take some interest in the following description of her construction, from the report of a Board of Survey, ordered by Admiral Farragut, after the battle:
Description of the Confederate iron-clad Tennessee.
The vessel had been built at Mobile, Alabama, under the superintendence of Messrs. Pierce and Bassett, naval constructors, and Mr. Frick, chief engineer of the station.
Hull. The hull of the vessel was very strongly built in every part, the materials being oak and yellow pine, with iron fastenings.
Length from stem to stern on deck, 209 feet; greatest breadth of beam on deck, 48 feet; mean average draught of water about 14 feet.
The deck was covered fore and aft with wroughtiron plates, two inches thick.
The sides of the vessel were protected by an over-hang, sponsoned, and covered with two layers of 2-inch wrough