D 



d 



Air bladder of ^Mpon atlantlcus cut open to show lung tissue. (From specimen 30 cm. long.) 



e and b. Small bands of lung tissue. 



o and d. Large bands of lung tissue connected by membrane along pale 

 median line. 



e. Gullet cut open. 



f. Orifice between gullet and air bladder* 



BLOOD VESSEL 



LUNG TISSUE 



CROSS SECTION 



