Forkfication.
United States. Engineer Department. No. 2 in *“20*”.90.26 Papers on the subject of national defences, in reply to a com-
munication from the Secretary of War.
= [ Washington, 1851.] 122 pp. 8°.
[This work is kept on the Special Libraries Floor.]
 
Jan. 18, 1901 *D8204 — United States. Fortification. — Fortification.