Heights measured by barometer, [170]

Hume, his ideas of matter, [3]

Hydrometer, [144]

Hydrostatics, what it teaches, [110]

Hydrostatic balloon, [159]

Hydrostatic bellows, [132]

Hydrostatic paradox, [131]

Hydrostatic press, [133]

Ice, formation of, [329]

Ice, force of its expansion, [333]