72 Salmon at the Antipodes. 



fully, and it is highly recommended by Mr. 

 Howard, who has nsed it with success in New 

 Zealand. 



A plan has been invented in America, by 

 which the ova of trout kept in artificial ponds, 

 can be taken without catching or handling the 

 fish, and thereby preventing the losses which 

 are unavoidable in manipulating them. The 

 invention is called Ainsworth's Spawning- 

 Eace, and it has been patented in the United 

 States. It consists of a wooden box about 

 two feet wide, and of the same depth, in which 

 wooden trays are set, having wire netting in 

 the bottom, and containing coarse gravel 

 to allow the ova to fall through easily. The 

 box is placed in the bed of the stream, where 

 the water enters the pond in which the trout 

 are kept, and the water is made to flow over 

 the gravel with a rapid current, having a 

 depth of 12 inches at the lower end, where 

 the water enters the race, and gradually 

 getting shallower towards the upper end. 

 Beneath the trays containing the gravel, a 

 revolving belt on two rollers is placed, with a 

 handle above water, by turning which, and by 

 the action of two small bevel wheels, the 



