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Appendix A.
Five Day Means of the Principal Meteorological Elements observed at the Hongkong Observatory during the 23 years, 1884-1906 inclusive.
The first column exhibits the height of the barometer in inches reduced to 32° Fahren- heit and to Mean Sea Level but not for gravity.
The second column exhibits the temperature in degrees Fahrenheit obtained from thermometers rotated 4 feet above the ground and 110 feet above Mean Sea Level.
The third column exhibits the relative humidity in percentage of saturation and the fourth the vapour tension in inches of mercury.
The fifth column exhibits the velocity of the wind in miles per hours as registered by Robinson's anemometer.
The sixth column exhibits the amount of clouds expressed in tenths of the whole sky.
The seventh column shows the hours of sunshine.
The eighth column exhibits the average amount of rain that fell in one day as measured by Beckley's raingauge.
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