318 



CIVIC BIOLOGY 



seem entirely possible to solve the problem of supplying such foods in 

 quantity and variety that would largely prevent even the bullfrogs from 

 eating each other. AVe might have lighted insect traps to deliver their 

 catches of moths and beetles all night long into the water beneath them ; 



i'lG. 150. Toad tadpoles (broad, dark margin of pond); young toads emerged 

 and moving landward (irregular gray edge of shore) 



Photograph by Newton Miller 



sweeps designed to catch grasshoppers alive ; blowfly maggot hatcheries, 

 made to drop the maggots into the w^ater as they ripen ; or, if all these 

 should not suffice, crawfish and the smaller species of frogs could be 

 added. Meehan^ states that "30,000 tadpoles have been safely carried 



1 Meehan, "Possibilities of Frog Culture," Country Life in America 

 (1908), p. 315. 



