"Casuarius (Cassowary). Feather, showing after-shaft and disconnected barbs." -Parker, 1900

Cassowary Feather

"Casuarius (Cassowary). Feather, showing after-shaft and disconnected barbs." -Parker, 1900

"Parts of a Feather. a, quill; b, shaft; c, vane; d, down." -Cooper, 1887

Feather Parts

"Parts of a Feather. a, quill; b, shaft; c, vane; d, down." -Cooper, 1887