56 FISH HATCHING. 



some vegetable structure, and several small 

 fragments of gravel and transparent quartz. 

 If ' Rifleman ' should see another water-ouzel 

 on the spawning-beds, I should much like him 

 to get it and send it to me, that I may repeat 

 the examination. "Water insects are attracted 

 in large numbers to fish ova, and the bird I 

 have examined evidently knew this fact. 

 F. T. BUCKLAND.]" 



" The notice in your paper of last Satur- 

 day, that one of these birds had been sent 

 to Mr. Buckland for examination, caused me 

 to look over my notes on this subject, made 

 in the spawning season 1856-7. Up to that 

 period I, in common with other preservers 

 of salmon and trout, took it for granted that, 

 because this bird is so constant a visitor on 

 the salmon, while that fish is spawning, it is 



