FRESH-WATER BIOLOGICAL STATIONS OF THE WORLD. 513 



done to insure the safe development to maturity of the fish? Present 

 methods have reached their limit and the subject must be attacked 

 from a different standpoint. Fish culture should receive by the liber- 

 ality of State and nation the same favors that have been extended to 

 agriculture, the use of permanent and well- equipped experiment sta- 

 tions, where trained workers shall devote their time and energy to the 

 solution of its problems. Thoroughness and continuity are essential, 

 for these problems really deal with all conditions of existence in the 

 water. Of what does the food of each fish consist, where is it found 

 and in what amount, how may it be increased and improved; to what 

 extent and how can the number of fish be multiplied, and how far is 

 this profitable; what are the best kinds offish and what new varieties 

 can be produced ? These are a few of the many questions to be solved. 



The problems outlined are indeed vast, and yet we may be confident 

 that their solution lies easily within the power of the human intellect, 

 for they are all paralleled in the history of the agricultural development 

 of the race; and man, relying upon his success in the past, may go 

 forward with supreme confidence to the attainment of their solution in 

 this new field. 



Zoological Laboratory, 



The University of Nebraska. 



SM 98 33 



