Part 4

Mean sea-level 28

Maximum thermometers 16

Meteorology, list of works on 4

Minimum thermometers 17

Mountain barometers 35

Motion 67

Nimbus clouds, form of 57

Ozone, determination of 91

Ozonometer 92

Packing barometers 32

Position of barometers 33

Pyrheliometer 9

Pressure anemometer 79

Psychrometer 49

Radiation, solar 9

Radio-solar thermometer 13

Rain, measurement of 60

Rain gauges 62 to 67

Rarefaction 26

Réaumur’s scale 20

Regnault’s hygrometer 47

Robinson’s anemometer 81

Solar radiation 9

Six’s thermometer 18

Standard barometer 28

Stevenson’s thermo-screen 51

Stratus cloud 55

Suspension of barometers 40