OUR RIVER HARVESTS. 



287 



eating with a tube which passes down the comer and 

 crosses the bottom. The lower portion of the tube is 

 pierced with holes like those of a watering-cart, and 

 the pump is so arranged that at each stroke atmospheric 

 air is driven through the tube and bubbles upwards 

 through the water, vivifying the exhausted liquid in its 

 progress. Little trouble is expended on the process, as 



TRAKSPORTrSG BOX. 



half a dozen strokes only are needed at a time, and the 

 pump is so lightly constructed that a child can work it. 

 The reader will observe that there is not the least 

 mystery or even difficulty about the process, and that 

 anyone who can obtain a supply of water is able to 

 hatch and rear young fish until they are old enough to 

 put into a river. Should the fish be of the non-migra- 

 tory kind they may be placed in a pond, where they 

 will grow with great rapidity, and are always at hand 

 when needed. In one pond which had been thus 



