396 University of California Publications in Zoology [Vol. 13 



Wray, r. s. 



1887a. On some points in the morphology of the wings of birds. Proc. 

 Zool. Soc. London, 1887, 343-357, pis. 29-32, 2 figs, in text. 



1887b. On the structure of the barbs, barbules and barbicels of a typi- 

 cal pennaceous feather. Ibis, (5), 5, 420-423, pi. 12. 



