RECORDS VOLUME XI, JAN., 1919. 



15 



per side, the dark portion being the air pas- 

 sage to the trachea. 



pop D 



Fi^. 3. Syrinx of Cory Gannet. A, section of trachea 

 behind larynx ; B, section before syrinx, s, s, sterno-tra- 

 cheals ; m, trachea, e, e, bronchials ; b, b, bronchial tubes ; 

 p, p, tympans; o. pessulus. 



The trachea of Cory Gannet is much flat- 

 tened at the larynx, fig. 3, A, where I have 

 given a section at the first ring, but becomes 

 narrower posteriorly, ib, B, which is a sec- 

 tion at the junction of the sterno-tracheals. 



