142 American Fisheries Society 



half million eggs and could have doubled the quantities; but owing to 

 the difficulty of getting word to the sub-station in time, it was not 

 done, and only about 250,000 were shipped out altogether ; and all the 

 rest of the eggs were hatched and fry planted in the natural waters 

 there. 



The Red Rock Lakes and the little streams where they catch the 

 spawning grayling are about 7,000 feet above sea level. I think the 

 Georgetown lake has an elevation of 6,000 to 7,000 feet. 



Mr. Cranston : What is the temperature of the water on an 

 average ? 



Mr. Dean : I have not taken the temperature of the water in 

 Georgetown Lake, but it is an artificial lake and not excessively cold. 



Mr. Cranston: And they thrive there, do they? 



Mr. Dean : Oh, my, yes. That is the finest place in the world for 

 them, and they are the finest fish I ever saw. 



Mr. Cranston : There is no doubt but they would do well? 



Mr. Dean : They will stand much warmer temperature than the 

 trout and will carry much better when small than trout. 



Mr. Cranston: That is, the fry after being hatched? 



Mr. Dean : Yes — 4 or 5 days after hatching when they begin to 

 swim out. 



Mr. Cranston : How about the difficulty of feeding which has been 

 mentioned ? 



Mr. Dean : I would not want to try it, unless you can run creek 

 water to them. Dr. Henshall did have a little success in feeding by 

 using water from a creek. 



Mr. Cranston : Your method is to liberate them as soon as they 

 swim up and seek food. 



Mr. Dean : Yes, same as whitefish. We will have some nice speci- 

 mens at the Helena Fair and we can show you grayling from this lake 

 that weigh over two pounds each, and we will have them on exhibition 

 at that fair. 



Mr. G. H. Thomson, Colorado : How do the grayling and trout do 

 in the same stream ? 



Mr. Dean : Near the Madison power dam for a distance of 4 or 5 

 miles in length and a mile in width, on the Madison River, which 

 heads away up in the National Park and comes down and helps form 

 the Missouri at Three Forks, there are the grayling, the brook trout, 

 steelheads and rainbows living together. Steelheads have been caught 

 weighing over 12 pounds. They all do well. In Georgetown Lake 

 natives, brook and grayling live together in peace and harmony, and 

 are growing fast. 



Mr. Thomson : On this proposition of the grayling I would like 

 to say that up in the northern portion of Colorado there is a portion 

 of the river above Fort Collins, above which, on account of the large 

 dam used for irrigating purposes, our trout are not able to go, where 



