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Scientific American 1894-12-08

ScientificAmerican1894-12-08.jpg Scientific American 1894-08-25ThumbnailsScientific American 1904-01-23Scientific American 1894-08-25ThumbnailsScientific American 1904-01-23Scientific American 1894-08-25ThumbnailsScientific American 1904-01-23Scientific American 1894-08-25ThumbnailsScientific American 1904-01-23Scientific American 1894-08-25ThumbnailsScientific American 1904-01-23

The steel foundations of tall office buildings. The American Surety Building. The Fahys Building. Details of cantilever. Steel frames; direct bearing columns.



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

Restoration by: magscanner