West 57th Street and Fifth Avenue. Whitney Residence

West 73rd Street and Riverside Drive. Charles M. Schwab residence

East 77th Street and Fifth Avenue. Senator William H. Clark residence

East 34th Street and Park Avenue. 71st Regiment Armory building

East 87th Street and Fifth Avenue. Henry Phipps residence

View looking down Broadway from Warren Street [City Hall Post Office and Courthouse designed by A. B. Mullett.]

[New York World's Fair. Aviation Building, steel frame. Construction view.]

10 Park Avenue. Apartment construction, steel frame

New York Worlds Fair. Perisphere and Trylon steel frame

New York Worlds Fair. Perisphere and Trylon steel frame

New York Worlds Fair. Perisphere and Trylon steel frame

New York Worlds Fair. Perisphere and Trylon steel frame

New York Worlds Fair. Perisphere, looking up from inside steel frame

Grove Street and Seventh Avenue. Building construction, steel frame

220 Madison Avenue. John Murray Apartments. Construction view, steel frame

Wall Street. 1887

New York Worlds Fair. Perisphere, looking up from inside steel frame

[New York World's Fair. Construction view, looking up at the steel frame of the Perisphere.]

[Construction of the New York World's Fair site, showing the steel frame of the Perisphere.]

West 38th Street and Eighth Avenue. Building construction, steel frame