420 



THE KEEPER'S BOOK 



each box, and stop-cocks control the supply for each 

 box. When the water is turned on it is thrown from 

 each pipe to the opposite row of baskets in the box, for 



PLAN OF LUSS HATCHERY 



SHEWING ARRANGEMENT 



OF HATCHING BOXES AND WATER SUPPLY 



Ji 



JL 



Tr 



DOOR StaVT o- , 



-I f 



its whole length, practically like a spray bath. This 

 supplemental supply ensures to the ova massed in the 

 baskets a sufficiency of oxygen of which the water flow- 



