Columbia subject headings:
Harvard subject headings:
Dialing--Early works to 1800.
Fireworks--Early works to 1800.
Naval gunnery--Early works to 1800.
Navigation--Early works to 1800
Spherical astronomy--Early works to 1800
Surveying--Early works to 1800
Princeton subject headings:
Dialing--Early works to 1800.
Fireworks--Early works to 1800.
Naval gunnery--Early works to 1800.
Navigation--Early works to 1800.
Spherical astronomy--Early works to 1800.
Surveying--Early works to 1800.