Report on the fabrication of iron for defensive purposes
Subtitle: and its uses in modern fortifications especially in works of coast defense.
By: [By John G. Barnard, Horatio G. Wright and Peter S. Michie, of the Corps of engineers]
Contributors: Barnard, John Gross, 1815-1882
Publisher: Govt. Print. Off.
Published: 1871
Place of publication: Washington
Language: eng
Number of pages: 230
Subjects: Coast defenses; Fortification