46 



" his lead mines on the Wear and Ti/?]e. The very day 

 " before I was there almost every pool in the Dovey 

 " contained dead sewen, and a large number were brought 

 " to me." 



And Mr. Walpole, at page 68, observes ; 



" The Doveij, naturally one of the most important 

 " rivers in the kingdom, 35 miles long, and with a catch- 

 " ment basin of 264 square miles, is being terribly 

 " injured by two mines on one of its tributaries (the 

 " Twi/min). When I was in INIerionethshire last August 

 " the fish were lying dead in the river, poisoned hi/ pollu- 

 " tions, miles below the point at which the " hush " enters 

 " the river." 



