474 U.S. BUEEAU OF FISHERIES 



Some repairs were made to the pipe line supplying the hatchery 

 building in order to assure a supply which would not become clogged 

 b}^ debris. 



There was also placed in operation during the fiscal year a new 

 rearing-pond establishment at Jackson Hole, Wyo. This consists 

 of a group of 8 ponds 60 feet in length, built of concrete and fed by a 

 spring mth a flow of 6,000,000 gallons per day. The fish were trans- 

 ferred to this point from other hatcheries and were fed and reared 

 \mder the supervision of an employee of the Bureau until the early 

 fall when they were distributed. The distribution was materially 

 aided by cooperation received from the National Park Service. 



At the Crawford (Nebr.) station a satisfactory production of trout 

 and pond fishes was obtained. The hatchery itself was used for the 

 propagation of trout while the warm-water fish, bass, etc., were 

 obtained from ponds located on the Fort Robinson military reserva- 

 tion and from other local private sources. 



The supervision of this extensive territory rested with the Salt 

 Lake City office which was the headquarters of the personnel engaged 

 in biological investigations of the national forests and national parks 

 and in the preparation of a stocking policy program for these waters. 

 Owing to limited funds it was necessary to discontinue the services 

 of the employees engaged in the latter work at the close of the fiscal 

 year. The results of the biological studies are reported as an activity 

 of the Division of Scientific Inquiry. Reports were made on the 

 stocking policy covering 16 of the national forests. The headquarters 

 of the Salt Lake City personnel were transferred to the University 

 of LTtah shortly before the start of the fiscal year under a cooperative 

 arrangement whereby the university received the services of the 

 district supervisor and the Bureau's biologist in charge, for the conduct 

 of courses in fish culture and fishery biology. In return for this the 

 Bureau received the necessary quarters and accommodations gratis. 



NEW ENGLAND STATIONS 



The hatcheries located at inland points in New England are con- 

 cerned largely with the propagation of trout although effort is made 

 to produce some of the pond fish required for northern territory. 



The work of the St. Johnsbury (Vt.) station has largely been sub- 

 merged by that of its auxiliary at York Pond. The main work has 

 been centered at the latter point and the old St. Johnsbury station 

 has been more extensively used as a distributing point. 



This York Pond auxiliary in the White Mountain National Forest 

 in New Plampshire is being developed as the main source of supply 

 for brook- trout eggs. This development work during the past year 

 included a distributing and filtering system for the water supply, 

 development of spawning races, and a general expansion of the pond 

 and water supply system of this large plant. Considerable has also 

 been done on the improvement and completion of buildings and the 

 installation and upkeep of equipment. Approximately 9,000,000 

 brook-trout eggs were taken. A considerable number of the older 

 brood stock was distributed since it has been found that the older 

 fish are less satisfactory for egg production. 



Second only to the St. Johnsbury station in output and egg pro- 

 duction is the station at East Orland, Maine, and its auxiliary at 



