America II Fisheries Society. HI 



In stocking streams with grayling- fry it is my opinion that 

 they should be planted within a few weeks after they are trans- 

 ferred to the rearing ponds, or even so soon as they begin to swim 

 freely, as is done with lake whitefish fry — provided that suitable 

 places be selected in the streajn. Shallow, weedy situations in the 

 eddies or back water of the smallest tributaries should be chosen 

 There they would find their requisite food, and be safe from the 

 depredation of larger fishes. 



At our grayling auxiliary station some two million fry are 

 planted each season in the adjacent creeks as soon as they begin 

 to swim, and the result is very apparent the following autumn, 

 when the waters fairly swarm %vith grayling fry several inches 

 long. The grayling is quite shy, and a wilder fish than the trouts, 

 and can not be so easily tamed — another reason in favor of their 

 being planted early in life. 



A very important matter to be considered when the fry are 

 placed in the rearing ponds, is to see that there is no leakage in 

 the drain boxes, and that the screens are caulked in their grooves, 

 and the screens themselves reinforced by perforated tin of the 

 smallest calibre, otherwise many fry will escape. I have lost thou- 

 sands from leak}' outlet boxes when, apparently, they were per- 

 fectly tight. But as grayling fry will worm themselves, at first, 

 through a pin-hole, it is evident that the utmost caution must be 

 observed to prevent their escape. 



TRANSPORTATIOX OF EGGS. 



Previous to the present summer I have had considerable 

 ■trouble in shipping grayling eggs safely. The period of incul)a- 

 tion being so short, and the shipment occurring during hot 

 weather, it seemed impossible, with ordinary means, to transport 

 the eggs to a distance without a loss of 25 to 90 per cent, owing to 

 the high temperature to which they were subjected en route. 



Heretofore we have used the ordinary egg-shipping case, 

 which, while answering we'll for trout eggs, has proved a failure, 

 even when well su[)plied with ice, for grayling eggs. Last winter I 

 devised and built a refrigerator case that has proved to be just the 



