Report on the fabrication of iron for defensive purposes
Subtitle: and its uses in modern fortifications especially in works of coast defense [with Supplement]
Contributors: Wright, Horatio Gouverneur, 1820-1899.; Michie, Peter Smith, 1839-1901.
Series: Professional papers of the Corps of engineers, U. S. Army.; no. 21
Publisher: Govt. Print. Off.
Published: 1871
Place of publication: Washington
Language: eng
Subjects: Fortification.; Coast defenses.; Armor-plate.
Notes: By John G. Barnard, Horatio G. Wright and Peter S. Michie, of the Corps of engineers.
Supplementary report by John G. Barnard.