FISH FOR THE FORESTS 



70.') 



TROUT FOR RESTOCKING STREAMS. 



THE TROUT IX THESE CANS WERE PLACED IN STREAMS IN THE BLACK HILLS NATIONAL FOREST. AS LONG AS THE CANS 

 ARE IN A MOVING VEHICLE THE NATURAL MOVEMENT OF THE WATER IS SUFFICIENT TO AERATE IT. 



Almost in a moment the train has 

 come, the fish have been swiftly trans- 

 ferred from the fish car to the waiting 

 vehicles, the Ranger has signed the re- 

 ceipts on the run and the train is gone. 

 From this stage until the fish are final- 

 ly deposited in the waters for which 

 they are destined the work is exacting 

 and haste and unerring judgment are 

 essentials of success. 



Compared to the bulk of water 

 and number of fish contained the air 

 surface of the ordinary receptacle 

 is altogether inadequate and the water 

 must be aerated. So long as the 

 cans are in a moving vehicle the nat- 

 ural movement of the water is suffi- 

 cient, but if movement is suspended 

 the water must be dipped up and al- 



lowed to drain back at frequent inter- 

 vals. Sometimes the transportation of 

 fish across low valleys during the heat 

 of the day increases the temperature of 

 the water to such an extent that unle-- 

 the cans are iced many of the fish will 

 perish. If the fish are held in the re- 

 ceptacles for any length of time the 

 water must be replenished and care 

 must be taken to see that the water is 

 suited to the fish and does not contain 

 alkali or other injurious ingredients. 

 There is imperative need to transport 

 the fish to the point of deposit with- 

 out delay and throughout its various 

 stages this part of the work is marked 

 by feverish haste. Changes from mo- 

 ti ir cars to wagons, from wagons to 

 pack horses, are made with the least 



