26 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



fisheries for Great Britain. lu referring to tlie condition of the eggs, 

 oil their arrival in London, he saj^s, ^-A good proportion of the white- 

 fish eggs were alive and well." 



Some temporary troughs were pnt up, in Detroit, Mich., and supplied 

 with the ova, under the direction of Mr. A. M. Compeau, Mr. J. P. 

 Clark, Mr. George Clark, and Mr. James Craig. 



Experiments were again made by Mr. Green, Mr. Clark, and Mr. Wil- 

 mot, in 1S70. More than a million of ova were supplied by the liberality 

 of Mr. J. P. Clark and George Clark, without expense, from their ponds 

 in Detroit River. Mr. Green also made experiments in the breeding of 

 salmon-trout and lake-lierring, with some success. 



In 1871 these gentlemen just referred to, from Detroit and vicinity, 

 failing to arouse the interest of the State authorities in the matter of 

 fish-propagation, to the extent they desired, furnished Mr. IS". W. Clark, 

 of Clarkston, with the necessary funds for the erection of a building, 

 sixty-four feet in length by twenty in width, in which were put up 

 twenty-six troughs, sixteen feet long and one foot wide. The entire 

 building was devoted to the hatching of white-fish, and the number of 

 eggs laid down estimated at about one million. The experience of the 

 previous years aided Mr. N. W. Clark to a most complete success, and 

 by the 1st of April the fish began hatching, and before the 13th of 

 the month the troughs were swarming with young white-fishes. Be- 

 tween the 20th and the 30th of April these were all distributed by Mr. 

 Clark in a number of inland lakes in Oakland (\)nnty, Michigan, and 

 into the Detroit Eiver. 



Mr. Wilmot again procured about one-half million of white-fish eggs, 

 which were handled with improved success. 



Mr. Green gave less space to white-fish eggs this season, and laid 

 down large quantities of salmon-trout ova, with the purpose of distribu- 

 ting the trout in the inland waters of the State. 



In 1872 an employe of Mr. Green de\'ised a new apparatus for hatch- 

 ing fish, that economized space to a great extent, and aftbrded him 

 room for a large supply of both salmon-trout and white-fish ova. Visit- 

 ing his establishment in January last, we found them hatched out in 

 large quantities, and orders arriA'ing daily for the fry, to stock the waters 

 of inland lakes in all parts of the State. 



Mr. Wilmot obtained a supply of white-fish spawn at Sandwich, on 

 the Canadian side of the Detroit River. 



■ November 11th I met Mr. X. W. Clark at Ecorse, and in company 

 Avith Mr. George Clark we visited Grassy Island for the purpose of ob- 

 taining white-fish spawn. The box which Mr.. X. W. Clark has devised 

 for carrying ova is constructed so as to carry a greater quantity of 

 eggs, with easier carriage, than any in present use. It is a large square 

 can, of zinc, about thirteen inches square and twenty-two inches deep. 

 This, for protection, is set inside of a strong wooden box, with a light 

 frame in the bottom, supported on stiff springs. Strong handles are 



