F. W. Dry 



101 



TABLE 1. 



Meteorological data for the period June 1st to Sept. 30th for each of the years 

 1911, 1912, 1913, 1914, and average percentages of plants attacked by the 

 Swede Midge (% CL). The figures given below are calculated from figures 

 published in the monthly weather reports of the Meteorological office. 

 The figures given for the East Riding are the mean of figures calculated 

 for Scarborough and Hull. 



* 27 fields were examined between July 16th and 29th. 

 \ 7 fields were examined on August 2nd. 



