127 
years, as it is clearly of the utmost importance to all meteoro- 
logical research that observations from all kinds of auto- 
matic instruments be thoroughly investigated and discussed 
In the first table below is represented the number of days 
in the year 1869 on which the mean direction of the wind 
was on or about the following 16 points of the compass : — 
Points of the compass... N NNE NE ENE E ESE SE S3E 
Number of days 16 11 14 18 16 13 10 15 
Points of the compass... S SSW SW "YVSW W WNW NW NNW 
Number of days 29 32 18 33 46 45 28 21 
This shows how the frequency of the winds on the west 
side of the compass exceeds the east side ; but this is seen 
in a more striking manner when the above days are referred 
to the four points of the compass only, When thus reduced 
they appear as follows ; — 
Cardinal Points N E S W 
Number of days 84‘5 56'5 89’5 134’5 
The maximum of direction here seems to lie between the 
south and the west, and the minimum between the north 
and the east; and as I have shown in papers previously 
read before this Section that the greatest amount of rain 
falls when the direction of the wind is between the south 
and the west, and the least amount falls when the direction 
of the wind is between the north and the east the coinci- 
dence is not without significance. 
In the following table is represented the mean number of 
degrees through which the wind veered when the mean or 
general direction was on or about the given 16 points of the 
compass. 
Points of the compass... N NNE NE ENE E ESE SE SSE 
Number of degrees') 
through which the £ 107 124 117 148 184 154 143 103 
wind veered J 
Points of the compass... S SSW SW WSW W WNW NW NNW 
Number of degrees') 
through which the > 123 133 192 195 207 160 163 12/ 
wind veered J 
If the number of degrees of range on the East and W est 
B 
