THE PUBLIC AQUAEIUM 



271 



During recent years all trout fry produced in the aquarium have 

 been used in stocking streams in the Palisades Interstate Park. 

 Other kinds of young fishes usually have been distributed in the lakes 

 of New York and New Jersey. 







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It is 24 years since the fish-hatching exhibit was placed in opera- 

 tion at the New York Aquarium. During this period it has shown 

 the eggs and young of many kinds of food fishes in different stages 

 of development, from the appearance of the dark eyespots in the 

 transparent eggs, through the process of breaking of the shell and 

 the absorption of the yolk sac, to the active swarming of the fry 

 in the rearing troughs and glass tanks. 



