33 



muck is absolutely necessary to keep the trout in the best 

 of health and to avoid fungus. 



Three times per week the refuse from the lish, as well as 

 the muck which does not run off, is removed by the use of 

 syphons, and once per week the tanks are rubbed dowm 

 with brushes. 



I enter into the details of this matter more particularly, 

 because I do not call to mind that any one has ever given 

 this subject publicity. 



THE FISHERIES AT THE WORLD'S FAIR. 

 By J. W. Collins. 



It is doubtless safe to assume that all who are promi- 

 nently identified with commercial fishing, with angling, 

 with tish culture, or with the scientific study of questions 

 relating thereto, will feel an interest in that section of the 

 World's Columbian Exposition which will be specially 

 devoted to an exibition of all that pertains to them. It 

 may well be a matter of special gratification that the fish- 

 eries will receive more consideration at this exposition than 

 has ever been accorded them elsewhere under similar cir- 

 cumstances. And it should be all the more satisfactory to 

 Americans, because heretofore there has never been ade- 

 quate and suitable provision made at any exposition in 

 this country for a fishery exhibit, and all attempts in this 

 direction have been lindted by small appropriations and 

 inadequate space. 



It is true that there have been numerous fishery exposi- 

 tions in different European countries, some of which have 

 been national and others international. It is also well 

 known that the United States has participated in two of 

 these, and tliat the highest honors were awarded to America 



