PREFACE 



The Book of Flies, inset at the beginning 

 of this volume, is designed for the conveni- 

 ence of those anglers, the great majority, 

 who, amid the pressure of practical affairs, 

 naturally find it difficult to remember the 

 relations of the lures to the months of the 

 season. In arranging the flies for streams 

 I have had the invaluable assistance of 

 Mr. William Senior, who revised, and in 

 some cases added to, the lists which I had 

 drawn up. What are known as "local 

 flies," lures in imitation of insects found 

 only on certain rivers, are not included. 

 Still, it is believed that as regards the flies 

 for running waters the lists are compre- 

 hensive. All possible care has been taken 



