VI PREFACE. 



has succeeded in giving a useful collection 

 of the leading flies for every month in the 

 season, and that any one, who may be led 

 by it to a choice of flies from the stock of 

 the manufacturer, or to the construction of 

 his own, will not have cause to repent of 

 having consulted the catalogue, chiefly com- 

 posing the fourth Chapter. 



But since in his endeavours to improve 

 the art of fly-making, careful observations 

 were made relative to some of the habits of 

 the Trout and Grayling, and of many in- 

 sects upon which these fish prey ; it is hoped 

 that a few of these observations, intermixed 

 with a little useful information, and some 

 remarks on other points more or less con- 

 nected with the principal subject, will not 

 be thought inappropriate. These form the 

 subjects of the three preceding Chapters. 



Chiswick, June, 1836. 



