By James M. Ingalls, Captain First Artillery, U. S. A. 8vo, cloth, $4.00

BALLISTIC TABLES.

Reprinted from the Handbook for West Point Cadets. By Capt. Jas. M. Ingalls. 8vo, cloth, $1.50

SUBMARINE MINES AND TORPEDOES.

As applied to Harbour Defense. By John Townsend Bucknill, Honorary Lieutenant-Colonel (late Major Royal Engineers) Reserve of Officers. With illustrations. 8vo, cloth, $4.00

PRACTICAL SEAMANSHIP.

By John Todd, Master Mariner, and W. B. Whall, Extra Master Younger Brother Trinity House. Royal 8vo, full cloth, with 243 Illustrations and Diagrams, $7.50

NOTES ON MILITARY HYGIENE.

For Officers of the Line. A Syllabus of Lectures at the U. S. Infantry and Cavalry School. By Alfred A. Woodhull, Major of Medical Dep't., Bvt. Lt. Col. U. S. Army. 12mo, morocco, $2.50

SIMPLE ELEMENTS OF NAVIGATION.