CHAPTER IV. 



REARING THE YOUNG FRY. 



Section I. — Progress of the Young Fry, and 

 General Directions. 



WE have now come to the most perplexing and 

 the most inscrutable of all the branches of trout 

 raising, namely, growing the young fry. How to hatch 

 the eggs, which would hatch themselves if simply let 

 alone by their enemies, was a problem comparatively 

 easy in its solution, although this was a grand achieve- 

 ment at first, and reflects great credit on those who 

 pioneered it through, the more because it was suc- 

 cess in hatching the eggs that first popularized the 

 art of fish culture and laid the foundations of the 

 present wide-spread interest in it. But to make the 

 \'oung trout live, which have equally delicate and more 

 complex organizations than the eggs, to find them the 

 food which is wholesome for them, while it is wholly 

 artificial, to anticipate wants which are not even 

 known, to discover derangements of organs, when 

 the organs themselves are microscopic, and to avert 

 diseases without a glimpse of their causes, — in short, 

 to make creatures live, so frail that a touch will almost 

 kill them, and that seem to die without a caii'^c, — this 

 was a field of study apparently so obscure and intan- 

 gible that it presented great difliculties. 



