450 ANNUAL RECORD OF SCIENCE AND INDUSTRY. 



inquiry it has been ascertained that quite a number have been 

 taken. Rochester Daily XJnion^ May 9, 1873. 



SHAD IN THE ALTAMAHA EIVER. 



Accordhig to Dr. S.W.Wilson, of Darien, Georgia, the sup- 

 ply of shad in the Altamaha River, in that state, has not ma- 

 terially changed during his recollection. The fish enter the 

 river in the beginning of January, and are taken for about 

 two months. They are captured by means of gill nets, the 

 river being too much obstructed by drift-wood to allow seines 

 to be drawn. 



HATCHING STEIPED BASS AETIFICIALLT. 



A very important experiment was made by Mr. M. G. Hol- 

 ton, the foreman of one of the parties organized by Seth 

 Green, under the direction of the United States Commissioner 

 of Fish and Fisheries, for the multiplication of useful food 

 fishes in the rivers and lakes of the United States. Mr. 

 Green has been engaged since the early part of April in the 

 work in question, commencing first on the Savannah River, 

 and proceeding thence to the Neuse, the Roanoke, the Poto- 

 mac, the Susquehanna, the Delaware, etc. The fact that the 

 fish have become nearly extinct in some of the rivers, and 

 the high state of the water in others interfering very ma- 

 terially with the success of these labors, the number of shad 

 hatched out was considerably less than had been hoped for. 



Noticing, however, that some of the rock-fish, or striped bass, 

 taken at Weldon, appeared to be filled with ripe spawn, Mr. 

 Holton made the experiment of securing this and placing it 

 in the hatching-boxes, and in three days' time the young fish 

 emerged from their shells, and were turned loose into the 

 water. The number hatched was about 100,000, and were 

 derived from two females one furnishing about 100,000 

 eggs, and the other 20,000. Contrary to the general antici- 

 pation, the eggs of the striped bass proved to be easily man- 

 aged, and are dry, separate when excluded, like those of the 

 shad, and do not adhere to objects they touch, like those of 

 the herring, yellow perch, and wall-eyed pike ox Ijucioperca. 



The esfixs are about the same size as those of the shacl 

 but the young are rather smaller and with less capacious 

 yolk-bag; so much smaller are they, indeed, that they read- 



