145. =Quill= (_Calamus_). The hollow horny basal portion of the
feather.
146. =Shaft= (_Rhachis_). The solid terminal portion of the stem
in which the fibres are implanted.
147. =Webs= (_Pogonia_). The series of fibres implanted on each
side the shaft, generally stiff, and having little
148. =Hooks= or =barbules= along the edges, by which adjacent ones
interlock; sometimes soft, with the barbules not interlocking, the
barbules sometimes wanting. The
149. =Inner web= (_Pogonium internum_) is situated on the inner
side of the shaft; the