102 TWELFTH ANNUAL REPORT OF THE 



1,000 of the young maskalonge at Corry station, and in a short time only 

 one fish was left to represent the experiment. All the others had become 

 victims of the process of "addition, division and silence." 



Foreman Brown discovered that the fry on trays thrive best when 

 the shallow trough containing the trays is furnished at each end with wire 

 cloth, allowing free circulation of water throughout the trough. He found 

 also that the fry in the cement ponds outside of the hatchery suffered much 

 loss through sunlight, and this will diminish by furnishing floating screens 

 to shut out the rays. 



One of the greatest needs of the Chautauqua station is a larger water 

 supply, and this may be obtained either by purchasing property and sink- 

 ing additional artesian wells or by pumping water from the lake. On some 

 accounts the latter method would seem to promise better results, for at 

 certain stages of the work the difference between the temperature of the 

 lake water and that of the artesian water is sufficiently great to produce 

 shock to the eggs when placed in the hatchery water. This difference, 

 early in May, often amounts to 7 or 8 degrees. The maskalonge egg is 

 very delicate, and when subject to such a change of temperature, it often 

 hatches prematurely and produces week embryos. Water could be pumped 

 from Chautauqua lake without great expense, and in such increased quan- 

 tity as to bring the capacity of the hatchery to any desired point. The 

 demand for maskalonge is constantly increasing; it has never been satis- 

 factorily supplied, and it cannot be fully met without an ample supply of 

 suitable water. 



The efficiency of the station could be still further augmented by intro- 

 ducing more hatching troughs and jars. The work could be increased 

 by fully one-third by making the necessary additions to the station 

 equipment. 



Caledonia Hatchery. 



This great station has been much improved by the introduction of' a 

 cement floor which now furnishes a solid foundation supporting the great 

 weight of the hatching troughs. Cement walks have been laid around the 

 building along one side and one end; the lining of the icehouse has been 

 renewed; the rearing ponds have been repaired; the main hatchery has 

 been shingled, and necessary painting has been done. Foreman Redband 



