Columbia subject headings:
Harvard subject headings:
Atomism--Early works to 1800.
Democritus, approximately 460 B.C.-approximately 370 B.C.
Leucippus.
Princeton subject headings:
Atomism--Early works to 1800.
Democritus, approximately 460 B.C.-approximately 370 B.C.--Early works to 1800.
Leucippus--Early works to 1800.