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THE NATIONAL GEOGRAPHIC MAGAZINE 



A SEINING CREW ON TIIE MARCH 



The party is proceeding in late autumn between two isolated lakes in a wooded bottom. 

 In summer the small ditch was full of water and the lakes were connected with the river. 

 The crew is here seen hauling a small boat from one lake to another. 



Throughout the Mississippi Valley — 

 in the States of Minnesota. Iowa, Ken- 

 tucky, Tennessee, Missouri, Arkansas, 

 and Mississippi — as well as in various 

 other States, there are Federal establish- 

 ments known as pond-culture stations, at 

 which are reared some of the same fishes 

 that are rescued in the salvage operations 

 along the river, the principal species 

 handled being the black basses, crappies, 

 sunfishes, and catfishes. 



The peculiarity which distinguishes 

 these stations from the ordinary hatch- 

 eries is that the ripe eggs are not taken 

 from the fishes by the fish-culturist, as in 

 the case of trout, salmon, whitefish, shad, 

 etc., but the fishes are allowed to spawn 

 naturally. 



Most of the pond fishes make nests 

 and guard their eggs and young. It is 

 therefore usually the case at these sta- 

 tions that a relatively large proportion 



