4 FISH HATCHIXG. 



artificial means, and why it is so necessary 

 so to do, I would beg to examine — first, the 

 various causes of their scarcity; and, secondly, 

 to point out the means whereby these causes 

 may be avoided, so that your painstaking 

 and care shall be rewarded fourfold. 



LAND AND WATER COMPARED. 



If you will for a moment observe this 

 wooden globe as I turn it round, you will 

 at once perceive what a vast preponderance 

 the water has over the dry land ; in fact, 

 we may fairly say that three-fourths of 

 the whole earth is water. We are for the 

 most part fully cognisant of the inhabitants 

 of the land — we have subjugated those which 

 are serviceable either for food or for labour 



