CHAP. IX. I 



PECULIAR PLUMAGE. 



373 



closely allied. In the Ostrich the feathers have no 

 accessory plume ; in the Rhe'a there is a tuft of down ; 

 in the Emeu the accessory plume is augmented to the 

 full size of the principal shaft and web, and the feather 

 of this bird is constantly and correctly represented as 

 having two plumes on one quill ; in the Cassowary, be- 

 sides the double shafts and webs from a single quill, 

 as in the Em.eu, there is still an accessory plume, thus 

 forming three distinct parts." 



Body feather of the Australian Emeu* 



