Design for an improved submarine tunnel
Subtitle: comprising a brick arch within a cast or wrought iron skin, laid in a trench dredged for that purpose
By: by Lieut. Col. J.G. Foster, Corps of Engrs.
Contributors: Foster, John Gray, 1823-1874.
Publisher: United States Army Corps of Engineers
Published: 1868
Place of publication: [Washington, D.C.?]
Language: eng
Subjects: Tunnels
Notes: Lettered on cover: "Engineer Department, U.S.A. Submarine Tunnel. Foster. 1868."