TEE ANATOMY OF BIIWS.—PNEUMATOLOGY. 



203 



Fig. 99. — Coiling of the windpipe in the sternum of Grus americana ; reduced. (From Amer. Nat.) 



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Fig. 100. — Coiling of the windpipe in the sternum of Gru$ canadensis : reduced. (From Amer Xat. ) 



