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CHAPTEB XX. 



AQUICULTURE. 



Water is one of the natural elements which, 

 next to the air we breathe, is of the most 

 importance to the human race. It makes an 

 easy highway for civilization to extend her 

 bounds to the remotest corners of the earth. 

 As a source of power it is invaluable ; as a 

 fertilizing agent it is of the utmost benefit 

 to all kinds of animal and vegetable life ; but 

 it is from the point of view of its value as an 

 element for the habitation and cultivation of 

 useful fishes that we would at the present 

 time wish to deal with it. In this aspect 

 it becomes mainly important as furnishing a 

 healthy, nourishing, and very welcome and 

 delicious addition to our food supply. 



It is asserted, as an undoubted fact, that an 

 acre of water, well stocked with fish, will 

 produce a far larger amount of food for man 



