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Scientific American 1894-07-28
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Created on
Monday 16 November 2009
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air
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construction
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sandhogs
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transportation
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underground
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water
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Scientific American
Tunnel recently completed under the east River, at New York City. Longitudinal section. Cast iron lining. Long Island City entrance. Iron lined section, showing Beach shield in operation. Drilling shot holes around an air lock. Blackwell's Island.
Source: Steve Kirch, collector, and creator of a great
website about SCIENTIFIC AMERICAN
in the past
Restoration by: magscanner
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