FLOATING DEPOT FOR COALING WARSHIPS. PROPOSED EXCAVATION OF THE PANAMA CANAL BY FLOATING DREDGES. PROPOSED EXCAVATION OF THE PANAMA CANAL BY FLOATING DREDGES of the locks, scientific american, 1906-01-20


FLOATING DEPOT FOR COALING WARSHIPS. PROPOSED EXCAVATION OF THE PANAMA CANAL BY FLOATING DREDGES. PROPOSED EXCAVATION OF THE PANAMA CANAL BY FLOATING DREDGES of the locks, scientific american, 1906-01-20


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