ON ARTIFICIAL FLIES. 87 



Body. Peacock quill dyed in No. III. 



Hackle and Whisk. Dyed in No. III. 



Hook. oo. 



Tom-tit feathers are most difficult to obtain, and 

 hence as a substitute a dark starling wing feather 

 dyed in No. VII. may be used for the wings of 

 any of the iron blues. 



Nos. 13, 14, 15 and 16 are all excellent patterns 

 of the Spring iron blue dun, a fly which is usually 

 taken by the trout in preference to any other in 

 streams where it hatches in any quantity. No. 16 

 must not be confused with the blue-winged olive, 

 No. 36, which is essentially an evening fly during 

 the late summer and early autumn, and much larger 

 than any iron blue. 



17. ADJUTANT BLUE. 



Wings. Medium starling, or pale coot. 

 Body. A strand from the pinion or tail 



feather of an Adjutant. 

 Hackle and Whisk. Blue Andalusian. 

 Hook, oo or ooo. 



The strand of Adjutant is stripped on one edge 

 only, by tearing down the longer flue with the 

 thumb and forefinger of the left hand. If not pro- 

 curable, a strip of quill from the pinion feather of 

 an oldish starling can be substituted, although not 

 so good an imitation as the Adjutant. This is the 

 October tint of iron blue. 



