MILNEK FLSIIEKIEW OF THE GKEAT LAKES. 25 



liave been iucrcasod to a very large extent from the breediiig-ljouses at 

 Huuiugeii, Stoiiiioiittield, and elsewhere. A j^early increasing- snpply ol" 

 salmon has by this means stocked the exhausted rivers of Canada. The 

 shad and alewixes haxe been restored to many of the eastern rivers, and 

 the brook-trout has been reared in great numbers, and many streams and 

 localities where they had always been unkuown have been stocked with 

 this favorite fish. 



Of all species except the shad, those of the salmon-family ])ro\e to 

 be the best adapted for artiti(;ial culture. The eggs are readily impreg- 

 nated, are specially atlapted to being handled, to endure transportation, 

 and lie free and separate at the bottom of the water, incased in an 

 investing membrane thick enough to protect the delicate embryo from 

 the hard contact of the gnnei, or glass, or wire screens upon which it 

 is necessary to place them. 



( 1 Sa.) Hi.storff of ilw tcldtc-fhli ciilfitrr on the /rf/.y.s. — II has already been 

 .shown that by far the nu)st imi)ortant fish of the lakes is the white-fish. 

 The fish culturists in the vicinity of the lakes, having the knowledge of 

 the rapid decrease that had been going on in the numbers of this species 

 fo]' the ]»ast few years, ai)i)reciated the adAantiige that their art might 

 iiiford should the white-fish jjiove to be adapted to their methods of 

 culture. 



Three prominent lish-culturists in the \icinity of the lakes began 

 their experiment about the same time: Mr. Seth Green of Rochester, 

 N. Y. ;Mr. Nelsou W. Clark, of Clarkston, Mich.; and Mr. Samuel 

 Wilmot, of ]!^ewcastle, Ontario, Canada. Mr. Green and Mr. Wilmot 

 obtained spawn in the fall of 18G8, and Mr. Clark in the f;ill ol" 

 18(59, and treated them in the same manner as the brook -trout. These 

 experiments were all attended with considerable success, though the 

 large percentage of loss, compared with that in trout and salmon 

 hatching, was anything but encouraging. The screens in the troughs, 

 in most instances, were the same as those used for the trout, and the 

 embryo w^hite-fishes, being smaller, escaped and ran over into the 

 waste-troughs, and down into the ponds below. This Avas in some 

 measure a fortuiuite circumstance, at Mr. Wilmot's establishment, i'ov 

 the young fish, fiiuling their nat uial food in the ponds, grew and thrived, 

 and afforded the only positive data there are of their rate of growth. 



In the succeeding year Mr. (ireen and Mr. Clark nuide additional 

 experiments, and fiom the exix'rieuce of the lu-eceding year, haAing 

 learned tlie necessity of immediate attention to the white-fish eggs 

 after they were placed in the troughs, began the work of removing the 

 uuimpregnated eggs within two or three days' time, and, gixing them 

 close attention, during the season hatched out a much larger percent- 

 age of eggs. Mr. Green, in 1809, distributed a quantity of the white- 

 fish spawn to numerous applicants w4io res[)onded toan advertisement 

 offering it for distribution. Sonu'. i)ackages of si)awn, from this sup- 

 ply, were sent by steamer to Mr. Frank Buckland, inspector of salmon- 



