Columbia subject headings:
Metallurgy--Early works to 1800.
Mineral industries--Early works to 1800.
Paleontology--Early works to 1800.
Zoology--Pre-Linnean works.
Harvard subject headings:
Metallurgy--Early works to 1800
Mineral industries--Early works to 1800
Mining engineering--Early works to 1800.
Paleontology--Early works to 1800
Princeton subject headings:
Metallurgy--Early works to 1800.
Mineral industries--Early works to 1800.
Paleontology--Early works to 1800.
Zoology--Pre-Linnean works.