Oct. 4, 1915-Mar. 27, 1916 
Illustrations 
XXVII 
A New Interpretation op the Relationships op Temperature and 
Humidity to insect Development 
Page 
Fig. i. Graph showing the relations of temperature and humidity to cotton 
boll-weevil activity... 1186 
2. Graph showing the method of determining the zone of effective tem¬ 
peratures at a humidity of 56 per cent. 1187 
