ccxxviii GENERAL SUMMARY OF SCIENTIFIC AND 



from approved ponds in Germany. The want has long been 

 felt of a fish that will thrive in the warmer waters of the 

 United States, where trout and other similar kinds can not 

 be sustained. In the carp we have a fish capable of with- 

 standing any reasonable elevation of temperature, and one 

 that, being a vegetable feeder, will find sustenance and grow 

 rapidly in ponds and other limited bodies of water. 

 Throughout Europe this fish occupies among the finny 

 tribe the position of poultry among birds, and is almost 

 as easily kept ; and when the supply obtained by the 

 United States Commission is large enough for distribution, 

 there is no doubt that it will be eagerly sought for. 



The State Commissions have also been doing their part in 

 the multiplication of food fishes, the New York Commission, 

 under the direction of the well-known Seth Green, having 

 hatched out many millions of shad in the Hudson River, as 

 also large numbers of brook and salmon trout. The efforts 

 in the direction of multiplying black bass, pike, perch, etc., 

 have also been continued. 



Massachusetts has also continued the work of propagat- 

 ing shad in the Merrimac River. On the ejreat lakes the 

 multiplication of whitefish, has been conducted on a very ex- 

 tensive scale by several states, especially by Michigan. A 

 special hatching-establishment has been erected at Detroit 

 for the whitefish, and now contains about seven millions of 

 eggs. A somewhat less number is also in process of devel- 

 opment at the Canadian establishment on the opposite side 

 of the river. Ohio has established several hatching-houses, 

 and has a considerable number of whitefish and other 

 species, to be distributed eventually to the waters of that 

 state. 



For information in regard to the minuter details of these 

 various operations, reference may be had to the article on 

 " Fisheries," page 4G5. 



A good deal of the interest felt in the subject offish-cult- 

 ure is due to the annual meetings of the American Fish- 

 Culturists' Association, in New York, usually about the mid- 

 dle of February, where the several State Fish Commissioners 

 and the principal fish-culturists of the country confer in re- 

 gard to their mutual interests. 



An annual convention of State Fish Commissioners is 



