Tig. 22. 



FIG. 12. Tongue and salivary glands, Woodpecker, i and k, the glands, the 



latter opened to show internal structure ; h, the four turns of the ccrato- 



tracJicalcs around the trachea. (After Owen.) 

 FIG. 13. Front view of the lower larynx and bronchi of a Raven, g, part of the 



peripheral surface of the tympaniform membrane. The muscles above 



are named in Fig. 14. (After Owen.) 

 FIG. 14. Side view of the same parts that are shown in Fig. 13. a and/, 



diverging fasciculi of the tracheo-lateralis muscle ; the fasciculus o is 



