Gravitation, limiting size, [90]
Gravitation, action of, on solids in a liquid, [136]
Gravity, specific, defined, [135]
Gridiron pendulum, [210]
Gunnery, retardation by condensed air in, [166]
Hail, how produced, [290]
Hardness, [28]
Harmony, [266]
Hearing, mysteries of, [269]