[002] Allegheny arsenal is on the Pittsburg side of Allegheny River, opposite the upper end of McCullough's Island. The grounds lie between Thirty-ninth and Fortieth streets. The site was purchased in 1814; a wall inclosing the grounds was completed in 1829. The arsenal was for many years used in the manufacture of war materials, a force of twelve hundred men being employed there during the War of Secession. Since 1868 it has been used as a military post, and as a quartermaster's depot. There were recently (1904) discovered there the principal documents relating to the equipment of the Lewis and Clark expedition, which was largely outfitted therefrom.--ED.
[004] _Triton lateralis._ SAY.--_Body_ and extremity above brown, with irregular black spots; _tail_ much compressed, subacutely edged above and beneath, lanceolate; a black vitta from the nostrils passes through the eyes, and is dilated on the sides, and becomes obsolete on the tail; a vertebral indented line, from the neck to the origin of the caudal carina, more faintly indented on the head; _head_ somewhat rectilineary attenuated from the anterior branchia, to the vicinity of the nostril, and truncate or subemarginate before; _nostrils_ minute; _eyes_ very small, whitish, crossed with the lateral line of the head; _beneath_ pale flesh-colour; _chin_ and _jaws_ to the branchia, and _tail_ from the posterior feet, with the exception of the areola of the anus, coloured like the back; _mouth_ moderate, angles beneath the eyes; _lips_ covering the jaws freely, inferior lip with a duplicature each side, which is white and covered by the superior lip; _tongue_ free, fleshy, rounded, extending beyond the angles of the mouth; _teeth_, lower jaw in a single row, obtusely conic, small, rather distant; a few smaller ones near the angle, elevated on a slightly prominent portion of the jaw; _superior jaw_, with a double series of teeth similar to the others, but rather smaller, an unarmed depression corresponding with the elevation in the lower jaw, and a few elevated teeth nearer the angle; _throat_ with a duplicated cuticle; branchiæ permanent. Legs short, weak, four-toed.
Total length 10 inches, from the tip of the nose to the vent, 6-1/2 inches.