Columbia subject headings:
Archimedes.
Art and science.
Franklin, Benjamin, 1706-1790.
Industrial arts--History.
Technology--History.
Harvard subject headings:
Archimedes
Franklin, Benjamin, 1706-1790
Princeton subject headings:
Archimedes.
Art and science.
Franklin, Benjamin, 1706-1790.
Industrial arts--History.
Technology--History.