GraphicsStaging

Niagara Falls from the American side, near the Ferry Staircase

Niagara Falls, from Canada near the Clifton House

Nobel Prize Winning Members at the APS General Meeting, April 1939

Page from APS Roll Book signed by Thomas Jefferson

Philosophical Hall

Philosophical Hall after the 1890 renovation

Philosophical Hall, 1790

Photographer Ruth Francksen (Mrs. Emlen Cresson) in the photographic laboratory in Drexel Building, circa 1944-1953

Portrait of John L. LeConte

Red Oak

Renovation of Philosophical Hall

Renovation of Philosophical Hall - Park View