106 llEPORT OF COMMISSIONER OF FISH AND FISHERIES. 



September field i)iep;irations were made for anticipated collections of 

 egg.s from the commercial fishing-grounds on Lakes Huron and Michi- 

 gan. These prej>aratioiis were continued until late in October, in the 

 meantime re[)airs })eing made to hatching-troughs, tanks, egg-trays, 

 and si)a\vii-taking outfit, in NovemV)er a night watchman, second 

 assistant, and others to comprise the spawn-taking foice, Avere tempo- 

 rarily employed. Severe storms prevented the collection of the usual 

 number of eggs. 



Whitfjifih. — Tlie first eggs were received November 8, consisting of 

 l>r>0,()0(), tlie total by Noveujber .}() amounting to !i5,040,()(K). The 

 losses while hatching were: November, 320,000; December, 1,180,000; 

 January, r)G(),0()(); February, 24(>,(t00; March, none. 



On the 22(1 of February 0,000,000 eggs were transferred by express 

 freight to Northville Station for reshipment to the Duluth establish- 

 ment. The eggs retained, 10,()40,000, commenced to hatch April 17, 

 continuing slowly until Ai)ril 20, wiieu, the water turning cold, very 

 few additional ones hatched until the 2.3d, there being about 7,000,000 

 out by the end of the mouth. Tlie last to leave the eggs came out 

 May. 8. The fry proved to be of excellent quality, and between April 

 27 and May 2;3 there were liberated 10,040,000. 



LaJce trout. — Eggs of this species were collected during November to 

 the amount of 2,350,000, all being transferred to tiie Northville Station 

 ])rior to November 30, in exj)ress freight consignments, as follows: 

 323,000 on November 11; 078,000 on November 17; 870,000 on November 

 22 ; 1 80,000 on November 20 ; total, 2,051,000. The shortage represents 

 the loss. The ma.jority were taken near Thompson, Lake Michigan, 

 but 250,000 obtained from Lake Huron by means of tugs operating 

 from Alpena were best in quality. 



The water temperature Xovember 1 was 42^ I*\, and on November 30 

 it had fallen to 3;P. From this date until Ai)ril 13 it ranged from 32.5° 

 to 33°. On April 19 it was 41°, on the 22d 38°, advancing after that 

 date gradually to 41'^ on the 27th. From this date a gradual rise was 

 experienced until May 27, when it was 50°. By the first of June the 

 equipment was stored to await operations of the next fall. 



DuLUTu Station, Minm^ota (K. O. .Swkknv, Sic, ani> S. 1\ Wihks, 



Sl'l'KltlNTKNDKNTS). 



R. O. Sweeny, sr., resigned the superintendency Ai)ril 15, 1803, and 

 S. P. Wires, foreman of Aljjcna Station, was appointed acting super, 

 intendent. On June 10 Mr. Wires was made superintendent. 



Tn July the high tem])eratur(r and gcMu^rally unfavorable (ondition of 

 the gravity water su[)piy from Lester Itiver rendered it impracticable 

 to hold the young lake trout brought over from the preceding year, 

 numbering 843,000. The surface of the water on the streams and lake 

 was covered with a yellow powder, which on the lake was seen in 

 areas 100 yards wide, 2 miles long, and 2 inches thick, consisting of the 

 pollen of the flowerless [)lants of the family Lycopodiucew. On July 12 



