THE ANATOMY Off A BIRD 



FIGS. 2, 3. (After Wray in ' Ibis ' for 1887.) 



B, Barbs; bp, proximal barbules ; 1, flange; 2, 'dog-tooth,' part of flange; 

 8, overlapping portion. 



Fia. 4. POBTION OP TWO ADJACENT BARBS. (After Wray in Ibis ' for 1887.) 

 B, barbs ; W, bp, barbules (distal and proximal). 



