METEOROLOGICAL OBSERVATIONS AT CHISWICK IN 1902. 1081 



May, the air temperature and that of the soil at four feet deep were the 

 same, while at two feet and one foot deep the soil temperatures were, 

 respectively, only 1 and 2 degrees warmer than the air. In the warmest 

 month, July, the soil at four feet deep was 1 degrees colder than the air, 

 but at two feet deep only 1 degree colder, and at one foot deep it was 

 rather warmer than the air. 



