REPORT OP COMMISSIONER OF FISH AND FISHERIES. 105 



BJacJc-spotted trout. — Iii addition to the 040 already on liand, from the 

 hatching of 1891, there were received in February, from Leadville Sta- 

 tion, 2,287 fish of the hatching of 1892. The shipment consisted of 5,000, 

 but owing to dehiys en route the greater part was lost. 



Whitejish. — There were received from the Alpena Station, and for- 

 warded February 20, by ex^^ress, to the Fish Commission establishment 

 at Buluth, Minn., 0,000,000 eggs of this species. 



Fike perch. — For the purpose of illustrating lish-cultural methods in 

 the exhibit of the Fish Commission in the Government Building at the 

 World's Fair, Chicago, collections of eggs of this species, to the number 

 of 16,550,000, were made on Saginaw Bay and Detroit River in April, 

 Mr. Herschel Whitaker, commissioner of Micliigan, cooperating in their 

 obtainment. In addition, 154,000 eggs of the common sucker were 

 secured and forwarded. 



During March preparations were made for the care of the young fish 

 derived from eggs held at the station, when the rearing-troughs were 

 thoroughly cleaned and asiDlialted. The first were placed in rearing- 

 troughs March 1. The mortality in May and June was somewhat 

 unusual, and was charged to an insufficient supply of water and limited 

 tank and pond areas. The number remaining on hand at the end of the 

 fiscal year, June 30, 1893, together with other fish in ponds, is given in 

 the table which follows: 



Alpkna Statiux, Michigan (Fuanjc N. Clark, Superintendent). 



Operations consisted in collecting eggs of whitefish and lake trout, 

 the former being hatched at this station to a large extent and the latter 

 transferred to the Northville Station. Mr. S. P. Wires, as foreman, 

 executed the fieldwork. In April, 1893, his services being required at 

 the Duluth Station, he was relieved, E. A. Tulian succeeding him. In 



