74 Salmon at the Antipodes. 



fish retained in artificial ponds, is by making a 

 race laid with suitable gravel, and after the 

 fish have spawned, shutting them off by a 

 screen and taking the ova, which may be done 

 by lowering the water. This is the plan 

 which has been very successfully adopted by 

 the Tasmanian Salmon Commissioners, at the 

 salmon ponds at New Norfolk. 



In a report dated April 5, 1875, addressed 

 to the Hon. Spencer Baird, by Dr. Livingston 

 Stone, the mode of obtaining salmon eggs in 

 the McCloud river is described. A bridge 

 was formed across the river, resting on tri- 

 angular wooden piers, moored with cables 

 and then filled with stones ; in the spaces a 

 grating of poles was placed, one inch and a 

 half apart, and securely fastened ; when this 

 was completed, the salmon were prevented 

 from ascending the river, and were netted in 

 immense numbers and the ova obtained from 

 them. 



The scene is thus graphically described 

 by Mr. Stone : " about four o'clock in the 

 afternoon, a few days after the passage of the 

 salmon was obstructed, it was announced that 

 they were making their first assault upon the 



