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 G. 1823-1874.
Publisher: s.n.]
Published: 1868
Place of publication: [Washington, D.C.?
Subjects: Tunnels