METEOROLOGICAL OBSERVATIONS AT WISLEY IN 1901. 658 



As regards rainfall, the large fall in February and the succession of dry 

 months from June to November inclusive are the most noticeable features. 



Diagram 3. — Mean Temperature of the Air at Wisley compared with 

 the Mean Temperature of the Soil at 9 a.m., at depths of 1 //., 2 ft., 

 and 4 ft. below the surface, for each Month of the Year. 







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Fig. 203. 



Diagram 2. — The warm weather of July is again shown here by the 

 excess of the mean of the highest (day) temperatures over the average, 



