FOSSIL FEATHERS AND UNDESCRIBED FOSSIL BIRDS 631 
The remiges of the wings are fixed to the ulnar edge of the arm and to the 
manus; they are covered for nearly half their length with a filiform down. 
None of them project beyond the others; the wing is rounded in its outline 
like that of a Fowl [p. 445]. 
What else Professor Vogt says in this article about the feathers 
of this famous fossil bzrd from the Upper Jurassic of Solenhofen, 
Bavaria, is not applicable here, where I desire to discuss only the 
character of fossil contour feathers, as well as ‘“‘downy”’ ones. 
Fic. 3.—Fossil bird (?) from Florissant, Colo. (1908). Loaned by Theo. D. A. 
Cockerell, of the University of Colorado. Natural size. Reproduction of a photo- 
graph by the author. 
Fossil feathers have puzzled paleontologists more than once; 
and not long ago, Dr. Knowlton, of the National Museum, showed 
me there, in the collections, some specimens that were originally 
described as ‘“‘fossil feathers,’ but were subsequently pronounced, 
and proven to be, examples of fossil ferms of species since described. 
Here in the United States nearly all the specimens we have in 
museums of the fossil feathers of birds—and they are, comparatively , 
