158 FARM SPIES 



"All right, I have window-screening that you can 

 use," his father said. 



When they started back home Frank had his 

 corn-stubble packed in the rear of the car, and when 

 he arrived there he buried them back of the wood- 

 shed. Several days afterwards he came and told 

 his father, "Bringing the stubble from Uncle Fred 

 makes me laugh." 



"Why?" his father asked. 



"Because I can find all I want around here," 

 he answered, and they both 

 laughed. 



(Afte7B U r.EM.,u~s.Dept.A g r.) In the spring when the 

 FIG. 62. "He found a num- corn was being planted none 



ber of chrysalids." . , . 



ol the caterpillars had changed 



to moths, and this puzzled Frank very much. At last 

 when it seemed to him that he could wait no longer 

 he uncovered the stubble and examined them. To 

 his surprise he found caterpillars in only a few of them, 

 but after a somewhat closer examination he found a 

 number of chrysalids. "You know I scratched my 

 head and wondered what became of some of the 

 caterpillars," he said to his father, "but I understand 

 it now ; they are changing to chrysalids or pupae and 

 that means that they will soon become moths; 

 hurrah ! " 



He kept on watching, and when the corn was large 

 enough to cultivate they had not yet become moths. 



