144 THE HABITS OF THE SALMON. 



has been of late years. Professor Huxley, late In- 

 spector of Salmon Fisheries for England and Wales, 

 in the report for the year 1881, has given most 

 interesting information on the question of the so- 

 called salmon disease. He states that, " It was 

 originally brought to notice by a remarkable outbreak 

 in the spring and autumn of 1877 in two rivers, the 

 Nith and the Esk flowing into the Solway Firth," 

 and he goes on to say, " It soon spread to the Eden 

 and other adjoining rivers. In the spring of 1879, 

 it was observed in the Tweed, when it rapidly became 

 very serious, and in 1880, when a commission was 

 appointed to investigate it, it had extended to the 

 Annan, the Eden, the Cree and the Dee, all flowing 

 into the Solway Firth ; to the Doon and the Ayr in 

 Ayrshire, to the Derwent in Cumberland, the Lune 

 in Lancashire, and to the Tweed. Since then the 

 disease has broken out in the Seont, the Ogwen, 

 and the Conway in North Wales, and in the Tay, 

 and North Esk in Scotland." There have been also 

 serious outbreaks of the disease in the Usk in Mon- 



