Jumping Cocoons. A Weather Observatory on Mont Rosa. $S SECTION SHOWING CONSTRUCTION OF MASONRY TRENCH SIDEWALK BULKHEAD AND CRIB HARLEM RIVER SPEED WAY. CE LONGITUDINAL AND CROSS SECTION THROUGH PASSENGER SUBWAY HARLEM RIVER , scientific american, 1897-02-06


Jumping Cocoons. A Weather Observatory on Mont Rosa. $S SECTION SHOWING CONSTRUCTION OF MASONRY TRENCH SIDEWALK BULKHEAD AND CRIB HARLEM RIVER SPEED WAY. CE LONGITUDINAL AND CROSS SECTION THROUGH PASSENGER SUBWAY HARLEM RIVER , scientific american, 1897-02-06


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