Columbia subject headings:
Immortality--Early works to 1800.
Natural theology--Early works to 1800.
Suicide--Early works to 1800.
Harvard subject headings:
Immortality--Early works to 1800
Natural theology--Early works to 1900.
Suicide--Early works to 1800.
Princeton subject headings:
Immortality--Early works to 1800.
Natural theology--Early works to 1800.
Suicide--Early works to 1800.