194 FISH CULTUEE 



The floating-box should be about six feet long, 

 one foot deep and three feet wide, with bot- 

 tom and ends of wire mesh, about sixteen wires 

 to the inch. A long piece of scantling is nailed 

 to each side of the box at the top, so as to main- 

 tain a balance and make it float more buoyantly. 

 This box is anchored in the lake in about ten 

 feet of water. 



There should be at least two spawn-gatherers 

 in the field, and as each man's pail is filled the 

 eggs are emptied into the floating-boxes where 

 they remain two or three days, if not too far 

 advanced towards incubation. They may be 

 carried to the hatchery in the ordinary egg- 

 cases, or in shipping-cans. The cans should 

 first be half filled with water, and not more 

 than ten or twelve quarts of eggs placed in any 

 one of them unless for a very short distance, 

 say ten or twelve miles; even then the number 

 ought not to exceed 15 quarts, as more is likely 

 to result in many of the eggs being smothered. 



There is nothing in fish-culture so easy to handle 

 as yellow-perch eggs. Almost any ordinary bright 

 young man who has been working in a hatching-house 

 a few weeks can care for the eggs during the entire 



