No. 546] INFLUENCE OF STARVATION 



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mined of any, is also subject to considerable possibility 

 of error. It is impossible to know from an inspection of 

 the matured plants that some of the pods have not been 

 lost by accident. Another difficulty is introduced by the 

 fact that some varieties of beans have a tendency to make 

 a " second growth" when they are allowed to stand in 

 the field after they are completely ripe. Unless frosts 

 are very late these second growth pods rarely mature. 

 If the plants be allowed to stand in the hope that they 

 will ripen these second growth pods, the normal crop of 



pods may either lose their seeds, if the weather be dry, 

 or decay if the weather be wet. All that can be done is 

 to watch the plants carefully, to harvest as soon as prac- 

 tically all the pods that are ripe, and to pull off any sec- 

 ond growth sprouts. This apparently introduces a con- 

 siderable personal equation into tlie work, but even if true 



