ii4 Salmon at the Antipodes. 



across the current in the hatching-race, 

 and no gravel whatever was used. When 

 hatching was about to commence, the ova 

 were removed to a hatching-race, where they 

 had sufficient room to insure their proper 

 development. This plan was- adopted to 

 enable Mr. Stone to hatch out a large 

 number of eggs which he had obtained, but for 

 which he had not been able to get proper ap- 

 pliances made in time to hatch in the ordinary- 

 way. The upward current keeps the eggs 

 partially afloat, and a slight motion of the 

 baskets brings the dead eggs to the surface. 

 The plan is useful in bringing eggs intended 

 for transit to a distance to the proper stage 

 of development. The establishment is on a 

 branch of the Columbia river, in the Oregon 

 territory, where the fisheries had been found 

 to be getting less productive. 



When a white speck, however small, ap- 

 pears in an egg, it is a sign that the embryo 

 within will die, and speedily the whole egg 

 becomes white and opaque. Dead eggs must 

 be removed as soon as possible, as, if this be 

 not done, the fatal byssus soon appears, and 

 if not removed, spreads from egg to egg, 

 destroying all it touches. 



