1893. THE INTERLOCKING OF FEATHERS. 



199 



n R 



Section throu(/h 27-ows^araltel to the distal Radii. 



J>.R. Distal RacUt P. R Froxvnal Radiu 





-'R 



Fig. I. 



d % Dia(/rconv 

 ^^ ofFeoyther. 



Fi^. 3. 



Froxittial Radii. 



F Folded, edge. 



Fig. 4. 



A I>istal RcvdiuLi 



n. Hamitlt or Hooh/leis. 

 C. CvLioy or Barbiccls. 



Seciiorv throufffi/ tii^e beuses 

 of 3 Distal Radii' 



Fig. 5. 



Fig. 6. 



Magnified Section through a 

 Ilooklet and folded edge qf 

 a Proximal Radius. 



F. Tolded edije. 

 H. Ilooklet. 



Diagrams of Feather-barbs. 



