Columbia subject headings:
Electricity--Early works to 1850.
Fireplaces.
Lightning.
Magic squares.
Meteorology--Early works to 1800.
Nollet, abbé (Jean Antoine), 1700-1770. Lettres sur l'électricité.
Population.
Tornadoes.
Harvard subject headings:
Electricity--Early works to 1850
Physics--Early works to 1800
Princeton subject headings:
Electricity--Early works to 1850.
Physics--Early works to 1800.