Columbia subject headings:
Franklin, Benjamin, 1706-1790--Knowledge and learning.
Molecules.
Science.
Scientists--United States--Biography.
Harvard subject headings:
Franklin, Benjamin, 1706-1790--Knowledge--Science.
Molecules.
Scientists--United States--Biography
Princeton subject headings:
Franklin, Benjamin, 1706-1790--Knowledge--Science.
Molecules.
Scientists--United States--Biography.