THE PERIODICAL CICADA 



destined course. When this instinct has served its purpose 

 and has taken the creatures to the port of freest passage 

 to the earth, all their love of light is lost or swallowed up 

 in the call to enter some dark crevice narrower even than 

 the one so recently left by such physical exertion. 



When the young cicadas have entered the earth we 

 practically have to say good-bye to them until their 

 return. Yet this recurring event is ever full of interest 

 to us, for, much as the cicadas have been studied, it seems 

 that there is still plenty to be learned from them each 

 time they make their visit to our part of the world. 



[225] 



