6 DOMESTICATED TROUT. 



possibility learn the nature of by living in it yourself; 

 and lastly, in the earlier stages of its growth the de- 

 velopments and functions of the trout and the progress 

 of its diseases are almost or wholly microscopic, — 

 all of which considerations call for a peculiar watchful- 

 ness and skill. 



But though so much is required for great success, it 

 is also true that the knowledge which has now been 

 gained of the art will enable most persons to raise 

 trout with very gratifying results, and almost any one 

 in a favorable locality can raise trout enough to feel 

 rewarded for his pains. 



The Principle of Security. 



Before taking up the various branches and pro- 

 cesses of trout raising, I beg to mention one prin- 

 ciple, the most important, in the writer's opinion, of 

 any in the whole prosecution of the enterprise, and 

 one which, on account of its importance, will be im- 

 pressed upon the reader at every favorable opportu- 

 nity throughout this little treatise. This is the prin- 

 ciple of insuring the utmost degree of security in every 

 department of your work. 



The emphasis with which this principle of security 

 is urged upon the trout culturist will be understood 

 when the following points are considered. 



I. All you have to do to be successful in trout 

 raising, or to make your fortune from it, if you have 

 a good place, is to keep your fish alive and growing. 

 The hundred thousand trout you hatch this spring, 

 if you keep them thirty months, will bring you thirty 



