IN CATERPILLARS 231 



in whose caterpillars of the spring brood no such 

 premature hibernation or sign of lethargy occurs ? 

 No, the deeper we look into these phenomena, 

 the surer seem to be the signs that the forces 

 provoldng the changes and characteristics ob- 

 served are doing their work in no blind fashion, 

 but rather under the impulse of some controlling 

 and thoughtful power. 



