Other Salmonida. 181 



a pond where this food was as plenty as in their native 

 streams. It is worth trying. 



CHAPTER XVIII. 



THE WHITEFISHES. 



Here is a genus of the family Salmonida called Core- 

 gomts, of which the well-known toothsome fish of the 

 Great Lakes called "whitefish" is the head of the family. 

 It is C. clupeiformis, a name which denotes its shad- 

 like shape. It does not take the hook readily, although 

 such "accidents" have happened. The smaller core- 

 goni are known as ciscoes, lake herring, etc. Having 

 hatched but few of these fish from eggs taken by others, 

 I thought best to ask the Hon. Herschel Whitaker, of 

 the Michigan Fish Commission, to give me something 

 on this subject for the book, so that the reader would 

 get it from a better authority. 



Mr. Whitaker (Feb. 5, 1898) writes as follows: 



MY DEAR MATHER I inclose herein a chapter on 

 the whitefish spawning as conducted on the Great 

 Lakes, which I hope may be satisfactory. I hope you 

 will find it of some value to you. It is somewhat longer 

 than you suggested, but I found it impossible to keep it 

 within the narrow limits suggested, although it will not 

 overrun it much. 



