NEW YORK RIVES. FRONT IMPROVEMENTS—THE ARCHES. in the dish to promote e pal drying. As soon as a skin forms on it holes must be made through it and the collodion un Fig. 2CONSTRUCTING THE FOUNDATIONS. yards but setting it exactly in place occupied longer. It may be observed that within tho capacity of the derrick poimiumultemoui iminimmung, scientific american, 1875-05-15

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NEW YORK RIVES. FRONT IMPROVEMENTS—THE ARCHES. in the dish to promote e pal drying. As soon as a skin forms on it holes must be made through it and the collodion un Fig. 2CONSTRUCTING THE FOUNDATIONS. yards but setting it exactly in place occupied longer. It may be observed that within tho capacity of the derrick poimiumultemoui iminimmung, scientific american, 1875-05-15

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