Complete regular army register of the United States, for one hundred years (1779 to 1879) : together with the volunteer general staff during the war with Mexico, and a register of all appointments by the President of the United States in the volunteer service during the rebellion : with the official military record of each officer. Also, a military history of the Department of war, and of each staff department of the army. With various tables relating to the army and other important military information, compiled from the official records