ScientificAmerican1902-01-18.jpg Scientific American 1891-01-31ThumbnailsScientific American 1891-01-31ThumbnailsScientific American 1891-01-31ThumbnailsScientific American 1891-01-31ThumbnailsScientific American 1891-01-31Thumbnails
Comparison of the Panama and Nicaragua canal routes.



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

Restoration by: magscanner