[151] 



POND CULTURE. 



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8. The sortifKjfubs. — Tlusse must \)v inatle of ]nuv. wood. uDd Ijiivc at 

 tlio top a diameter ol" 1 meter ; they should be 50 ceutiiueters hi"h, so 

 that they can easily bold 3 to 



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4 hectoliters of water. The di- 

 ameter at the bottom should 

 be a little smaller than at the 

 top, just enough to keep the 

 staves in position. 



0. Sortiiuf-tablc^. — The sort- 

 ing-table consists of a largeleaf 

 l)erforated in many ])laces, with 

 a raised edge, about 1*0 centi- 

 meters high. It should be hirge 

 enough to hold 300 to 400 

 ])ounds of tish. Asa genei'al 

 rule it is 1.7 to 2 meters long, and 1 meter broad. Directions as to the 

 manner of using these tables have been given in a ])revious chapter. 

 rj. n^ Sometimes sorting-ta- 



^' ' bles are used, which, 



instead of the perfora- 

 ted leaf, have a net 

 drawn tight and tirmly 

 fastened to a siiuarc 

 frame measuring al)ont 

 1 <• (' 11 1 i m et (' r s i n 

 breadth. Tlie meshes 

 of this net are very 

 wide, so that the small 

 lish fall through into 

 another net with nai- 

 low meshes extended below the first, and are thus separated from the 

 large ones. If the sorting-table has the dimensions given above, it is 

 well adapted to its purpose, but if it is only GO centimeters long and 



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broad, it does not fulfil its object. In tables of these dimensi(jns the net 

 cannot be drawn tight enough 5 the fish Avhich fall on it are placed in un- 

 natural ])ositions, and it becomes impossible to sort them at a glance 

 as the business re(juires, as a few fish will completely fill sucli a small 

 table. 



