368 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



were retained at this hatchery; and the remaining 35,000 were planted 

 in brooks in Oakland and Wayne Counties, Michigan. 



Seventy-five thousand eggs of California trout were received from 

 Baird Station, California, and hatched and transferred to Michigan, 

 Illinois, and Missouri waters, except a few thousand retained at the 

 hatchery to rear for breeders. 



About 50,000 eggs of Schoodic salmon were also forwarded to this 

 station from Grand Lake Stream, Maine. These were hatched and 

 liberated in Michigan, Ohio, and Indiana waters, except a few hundred 

 retained at hatchery for experiments in growing them in confinement, 

 on artificial food. 



One thousand five hundred German carp were sent to this station 

 from Washington, D. C, and from this point dispatched in lots of 20 

 to various parties throughout the Northwestern States. 



Season o/18S2-'83. 



The present season has witnessed the building of an auxiliary hatch- 

 ery at Alpena, Mich., on the coast of Lake Huron. The work was 

 begun about the first of October, and pushed rapidly forward to com- 

 pletion. The building was up and the equipments in by the 12th of 

 November, when eggs began to arrive from the adjacent fisheries. 



This hatchery is equipped exclusively for whitefish propagation, and 

 will admit the easy manipulation of 100,000,000 eggs of that species. 

 Owing to the tardy commencement of this work, however, provision 

 was made for hatching only a little more than 40,000,000 this season. 

 This number of eggs was safely secured from the 10th to the 30th of 

 November. Next season and thereafter we hope to operate the hatch- 

 ery to its full capacity. The location of this hatchery is all that could 

 be desired to suit the purpose in hand, as spawning fish are caught in 

 great numbers in the immediate vicinity, and the situation furnishes a 

 good distributing point for a large section of the northern part of the 

 " Great Lake Chain." 



A large supply of eggs has also been placed in the North ville hatch- 

 ery this season. This includes 300,000 eggs of lake trout from Lake 

 Huron, over 400,000 eggs of brook trout from the ponds of the North- 

 ville hatchery, and nearly 30,000,000 eggs of whitefish from Lake Erie. 

 Our brook-trout supply this year was augmented by 20,000 to 25,000 

 eggs obtained wholly from wild trout inhabiting the neighboring stream, 

 out of which they had run into the waste-channel of the ponds. 



The eggs in stock are in excellent, condition, and the aggregate re- 

 sults in embryos and minnows from these alone will far surpass any- 

 thing heretofore accomplished in the work of the hatchery, to say 

 nothing of operations at the auxiliary station at Alpena. It is expected 

 also, before the close of the current season, to lay in several million 

 eggs of wall-eyed pike, from Lake Huron fisheries; and at least 200,000 

 eggs of California or rainbow trout from the parent fish now held in 



