Howard’s cloud nomenclature 52 Hygrometer, Daniell’s 47 Hygrometer, Mason’s 48 Hygrometer precautions 50 Kew verification 42 Lightning 90 „ conductors 91 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 Sympiesometer 41 Temperature, correction for 27 Terrestrial radiation 13 Thermographs 23 Thermometer scales 20 „ screens 50 „ radiation 11, 14