CH 



LV 



KE 



CA S.I 



Fic. 354. Position of organs in a bird, diagrammatic. 



After Selenka. 



C., Cere around the nostril ; E., ear-opening ; GU., gullet ; TR., trachea ; CR., 

 crop ; PV., proventriculus ; H., heart ; LV., liver ; KE., keel of sternum ; 

 GL, Gizzard; S.I., small intestine ; CA., one of the two intestinal caeca ; L.I., 

 large intestine; CL., cloaca; P., pygostyle ; UR., ureter; K.I., kidney, im- 

 bedded in the ilia; A.S., a posterior air-sac; LU., lung attached to the ribs ; 

 CB., cerebellum ; O.L., optic lobe, thrust to the side ; C.H., cerebral hemisphere. 



