THE OREGON SPORTSMAN 



and eight inches long. The opening is covered with a screened cover 

 which allows air to enter as the horses move along and a current of water 

 to pass through when the cans are laid in the streams at night. There 

 is another opening on the end of each can in which is inserted an iron 

 screw plug about an inch in diameter. The stale water is taken out 

 through this vent when fresh water is poured in at the top. The whole 

 can is inserted in a tightly fitting canvas covering with holes and rings 



Interior of Fish Distribution Car, carrying* One Hundred and Eighty Ten- 

 Gallon Cans, With Air Tubes Attached. 



for strapping it to the pack saddle. Each horse carries two of the cans, — 

 one fastened on each side of the pack saddle. The total weight of each 

 can together with the fish and usual amount of water is about eighty- 

 five pounds. 



DIFFICULTIES OF TRANSPORTING FRY. 



Seven horses were used in 1913 in stocking the lakes. Five of the 

 horses carried the ten fish cans. When the fish were loaded on the horses, 

 it was necessary to keep the pack train moving. If the horses should 

 stand for a half hour or more, the fish would become sick and perhaps 

 die. The movements of the horses cause the water to splash back and 

 forth in the cans. This causes air to be dissolved in the water. When the 

 water is not in motion the fish use up the larger part of the air and if 

 more air or fresh water is not supplied they drown. For the sake of 

 precaution, a new supply of fresh water is added every hour or so. A 

 given quantity is taken from the lower vent and the same amount is 

 poured in at the opening in the top. The numerous springs, brooks, and 

 creeks along the mountain trails make it possible to change water as often 

 as is desired. The temperature of the water in the cans is kept as near 

 fifty-six degrees as is possible. Cooler water is more to be desired than 

 warmer water. If the weather is cool the changes of water need not be so 



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