OX THE GRAYLING. 19 



containing all the conditions necessary for their 

 increase. I know of no Grayling river farther 

 West than the Avon, in Hampshire ; they are 

 found in some of the tributary streams of this river 

 which rise in Wiltshire. I know of no river con- 

 taining them on the North coast West of the 

 Severn ; there are very few only in the upper 

 part of this river, and in the streams which form it 

 in North Wales. There are a few in the Wye 

 and its tributary streams. In the Lug, which 

 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 Trent, and the Blythe, afford Grayling; in 

 Yorkshire, on the North coast, some of the tribu- 

 tary streams of the Kibble, and in the South, the 

 Ure, the Wharfe, the Humber, the Derwent, and 

 the streams that form it, particularly the Rye." 



Again at page 203, he says, " Having travelled 

 with the fishing-rod in my hand through most of 

 the Alpine valleys in the South and East of Eu- 

 rope, 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 rising in 

 the highest and coldest mountains ; and the Gray- 

 ling 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 



