SEPTEMBER 22 1900. Balloon Aeadeat In Parts. Inclined Stairways for the New York Elevated. A New Gutta-percha. WORKMEN PREPARING A FOUNDATION FOR A NEW BRIDGE AT NIAGARA WITHIN 500 FEET OF THE AMERICAN FALLS. LIFE-LINES ATTACHED TO THE WORKMEN. BU ILDING ANCHORAGE IN THE RAPIDS FOR THE COFFERDAM. BUILDING k TEMPORARY BRIDGE TO GOAT ISLAND., scientific american, 1900-09-22
SEPTEMBER 22 1900. Balloon Aeadeat In Parts. Inclined Stairways for the New York Elevated. A New Gutta-percha. WORKMEN PREPARING A FOUNDATION FOR A NEW BRIDGE AT NIAGARA WITHIN 500 FEET OF THE AMERICAN FALLS. LIFE-LINES ATTACHED TO THE WORKMEN. BU ILDING ANCHORAGE IN THE RAPIDS FOR THE COFFERDAM. BUILDING k TEMPORARY BRIDGE TO GOAT ISLAND., scientific american, 1900-09-22
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