248 Journal New York Entomological Society. [Voi. xxiii, 



error for this class of pods is very high indeed. As a matter of fact 

 this empirical percentage is the only one which falls well inside the 

 zone of possible untrustworthiness. Even it lies far below the line 

 indicating the general condition. 



Diagram 4. Relationship between number of seeds matured per pod and 

 percentage frequency of weevils in Burpee's Stringless beans. 



Problem II. — Relationship between the Number of Seeds Matured 

 per Pod and the Percentage of Infested Seeds. 



In Tables III-IV the records for the seeds have been arranged 

 according to the number of seeds developed per pod instead of the 

 number of ovules originally laid down. The method of computation 

 is the same as that employed in the preceding tables. The graphs, 

 3-4, are prepared in a manner similar to those described above. 



The tables and graphs show the same kind of relationship for 

 number of seeds as for number of ovules per pod. As the number 

 of seeds matured per pod becomes larger the percentage of the seeds 

 which are infested by weevils increases. 



In the Golden Wax series the curve of increase in percentage of 

 parasitization from pods with the lowest to the highest number of 

 seeds matured is remarkably smooth. In the Burpee's Stringless ma- 

 terial the increase is not quite so regular. Indeed there is an apparent 



