Tiff. 20 



FlG. 8. Oblique view from the inner side of the furcula, coraeoid, and scapula 

 of the Raven, showing the areas devoted to the muscles which take 

 origin from these bones. Life-size. 



FlG. 9. Under view of the hyoid arches of a Raven, with the upper part of the 

 windpipe, in situ. Designed to show the origin and insertion of certain 

 muscles of the tongue, m.h., lingual attachment of the mylo-hyoldeus. 

 Life-size. 



FlG. 10. Superior view of the bones of the upper larynx and half-rings and 

 rings of the trachea. Shows the origin and insertion of the two 

 muscles which control the rima glottidis. x 2. All the figures drawn 

 by the author from his own dissections. 



