18 SALMON FLIES 



(viz., the arcs Ay and Az). The fibres 

 of the strips are pressed together by the 

 dressing silk in much the same way as 

 the folds of an accordion-pleated material 

 can be pressed together, and the strips 

 themselves lie in the same plane to the 

 hook as a whole. 



Slanting wings, however, are tied in 

 each separately, and in such a way that 

 they occupy the entire arcs AC and AD 

 respectively. The fibres in this case are 

 not pressed together by the dressing silk, 

 but each individual one is pressed on to 

 the hook-shank. This explains why in 

 this style of winging it is not always 

 easy to maintain the coherence of the 

 strip as a whole, as the natural relation- 

 ship of the fibres to each other is apt 

 to be disturbed, and the strip accordingly 

 splits. Some feathers (e.g., Turkey tails) 

 will not submit to this method of tying 

 in without splitting, and they therefore 

 require a special treatment, which is set 

 forth in Chapter XIV. 



In every case and in all styles of 

 winging it is most important that each 



i 



