22 OBSERVATIONS 



flows through the next valley, in Herefordshire, 

 many Grayling are found. In the Dee, as I 

 said before, they are found, but are not common. 

 In Derbyshire and Staffordshire the Dove, the 

 Wye, the Derwent, the Trent, and the Ely the, 

 afford Grayling ; in Yorkshire, on the North 

 coast, some of the tributary streams of the 

 Rihble, — and the Swale, from Eichmond to two 

 miles below Catterick, — and in the South, the 

 Ure, the Tlliarfe, the Uumber, the Derwent, and 

 the streams that form it, particularly the Rye.'" 



Again, at p. 203, he says : "Having travelled 

 with the fishing-rod in my hand through most 

 of the Alpine valleys in the South and East of 

 Europe, and some of those in Norway and 

 Sweden, I have always found the Char in the 

 coldest and highest waters ; the Trout in the 

 brooks risinof in the highest and coldest moun- 

 tains ; and the Grayling always lower, where the 

 temperature was milder : and if in hot countries, 

 only at the foot of mountains, not far from 

 sources which had the mean temperature of the 

 atmosphere ; as in the Vipacco, near Coritzea, 

 and in the streams which gush forth from the 

 limestone caverns of the Noric Alps. 



" Besides temperature. Grayling require a 

 peculiar character in the disposition of the water 

 of rivers. They do not dwell like Trout in 

 rapid shallow torrents ; nor like Char or Chub in 



