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DRAGON-FLIES. 



caterpillar and chrysalis, the pupa of the dragon-fly 

 differs little externally from that of the larva, except that 

 the two projections on the back which conceal the future 

 wings are larger and more distinct. 



It is as voracious as ever, but towards the middle of 



"Water line. 

 THE DRAGOX-FLY BEING RELEASED. 



summer it becomes more languid in its movements, 

 cares less and less for food, and at last ceases to eat 

 altogether. 



Meanwhile, a wonderful change has been taking pface 

 in its breathing apparatus its gills fail to extract oxygen 



