Home / Tag transit /

Scientific American 1913-03-29

Scientific American 1913-03-29.jpg Scientific American 1913-02-15ThumbnailsScientific American 1913-05-10Scientific American 1913-02-15ThumbnailsScientific American 1913-05-10Scientific American 1913-02-15ThumbnailsScientific American 1913-05-10Scientific American 1913-02-15ThumbnailsScientific American 1913-05-10Scientific American 1913-02-15ThumbnailsScientific American 1913-05-10

Trench and tube method of constructing sub-aqueous tunnels. This drawing shows the general method by which the four-track tunnel of the new Lexington Avenue subway of New York will be constructed beneath the Harlem River.



Artist:

Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past

Restoration by: magscanner