166 REPORT OP COMMISSIONER OF FISH AND FISHERIES. 



liave been able to secure by artificial means from other species, and also 

 that the parental instinct is unusually developed. The first conditions 

 mate pond-culture necessary and the second render it possible. The 

 methods hereafter described are those in use at Neosho station. 



ARTIFICIAL PONDS FOR REARING BASS. 



The size of spawning-ponds is controlled, to a certain extent, by cir- 

 cumstances. Small ponds which are long and narrow, with the inlet 



Plan of Neosho Station, showing shape and depth of ponds, with location of hatchery 

 and superintendent's dwelling. 



at one end and the outlet at the other in the line of the longest axis, 

 produce the best results, as the strength of the current can be better 

 controlled, and the whole pond regulated under the scrutiny of attend- 



