J. PISCICULTURE AND THE FISHERIES. 41 1 



season has turned out no less than 7,500,000 fry. Of these 

 he placed 200,000 above the Troy dam in the Hudson, 50,000 

 in Oneida Lake, 70,000 in Lake Champlain, 50,000 in the Gen- 

 esee River, and the remainder in the Hudson, at Castleton, 

 the scene of his operations. Fifty thousand young fish were 

 also obtained from him by Dr. Edmunds, the Fish Commis- 

 sioner of Vermont, and placed in Lake Champlain, at Burling- 

 ton. 



The work done by Mr. Green for the United States consist- 

 ed in introducing 30,000 young fish into the Alleghany River 

 at Salamanca, and 25,000 into the Mississippi River a few 

 miles above St. Paul. Last year Mr. Green placed 15,000 

 young shad in the Genesee River, and it is said that at the 

 present time young shad over seven inches in length can be 

 caught at the mouth of that river in Lake Ontario, thus ren- 

 dering it quite probable that they will not attempt to return 

 to the sea, but will spend the period of immaturity in the 

 lake, and will return to the river at the proper season for 

 spawning. 



A larger number of shad would have been planted by Mr. 

 Green on account of the United States but for the fact that 

 the heat of the water of the river, shortly after the commis- 

 sion was intrusted to him, reached 83 (on the 2d of July), 

 thus stopping all further operations. 



The later period at which the shad are hatched in the Con- 

 necticut River enabled Mr. Clift to carry on the work on a 

 considerably larger scale, and to better advantage. The 

 Commissioners of Fisheries of Connecticut, represented by 

 Dr. Hudson as chairman, kindly permitted Mr. Clift to use 

 their establishment at Hadley Falls for obtaining and hatch- 

 ing the necessary number of eggs ; and Mr. Clift and his as- 

 sistants started with a large supply of young on the 2d of 

 July. The fry filled nine eight-gallon tin cans, and an extra 

 can of ice was taken along to keep the water of proper tem- 

 perature. Young shad are much more delicate than salmon, 

 and the limits of temperature between which they can be 

 safely exposed during transportation are much closer: these, 

 according to Mr. Clift, ranging from 80 as a maximum to 60 

 as a minimum. 



At Salamanca 400,000 young fish in good condition were 

 placed in the Alleghany, which, in addition to the 30,000 in- 



