CADDIS-WORMS. 143 



" Or speak to the earth, and it shall teach thee : 

 and the fishes of the sea shall declare unto thee. 



" Who knoweth not in all these that the hand 

 of the Lord hath wrought this ? " 



Open some of the barnacle-like, stone-covered 

 little caddis cases that stud the stones and you 

 will find the pupa3. One that I examined was 

 about a quarter of an inch long and showed very 

 plainly the black eyes of the coming Caddis-fly. 



These flies should remain about two weeks in 

 a pupa state^ I believe. Perhaps the water in a 

 glass bottle may not be fresh enough for the 

 pupa3. At least I have never been able to keep 

 my caddis pupa3 in them until transformation. 

 The pupa3 seem to die, and a slight mould, such 

 as one observes gather on all dead insects under 

 water, forms on the caddis cases. 



