353 



I 224567830 I 234-567890 



Fig. 5. Limits within which the mean monthly rainfall and temperature 

 fell when plotted for years when the codling moth was scarce and abundant, 

 respectively, in southern Illinois. The areas enclosed by graphs numbered 

 1 — 12 include the data for the months January — December over a period of ten 

 years (1914-1924). The centers of these areas are represented by crosses num- 

 bered similarly In Pig. 4 (Cf. Figs. 30 and 31). 



