5§



Mr. W. P. Pycraft,



Explanation of Text figures.


Fig. i. Highly magnified portion of one of the barbules (radii)

from a barb (ramus) of a nestling down feather (pre-

penna) of Fraser’s Touracou.


Fig. la. A nestling down feather of Fraser’s Touracou borne on

the tip of a developing contour or adult feather highly

magnified. The magnified portion shown in fig. i is

from the middle of one of the little thread - like

processes marked— rd. The long “thread” marked

r is the ramus—the rod or shaft which supports the

radii or barbules.



