446 



The Ohio Journal of Science [Vol. XIX, No. 8, 



not more than a year after the quarry filled with water. Bearing 

 in mind the conditions in Pond I it is probably safe to assume 

 that they found a large insect population to serve as a food 

 supply. Other fish were thrown in from time to time. Nests 

 present at the time of this survey afford good ground for con- 

 cluding that the fish population has been continually increased 

 by natural propagation. 



TABLE 9. 



In order to gain an idea of what the fish were eating the 

 stomachs of five were examined. Their contents is given below: 



1. Lepomis pallidus 



2. Eupomotis 



gibbosus 



3. Apomotis 



cyanellus 



Mayfly nymphs, 3. 



Filamentous algae, small quantity. 



Chironomus larvae, 3. 

 Filamentous algae, small quantity. 

 Beetles, 3 ; distinct species but undetermined. 



Tipulid larvffi, 8. 

 Ichneumon (?), adult 1. 

 Sialis larva, 1. 

 Blue-Green algae, considerable. 



