. The structure and classification of birds . FiQ. 32.—Normal AvUN CAKOiibs. , , carotids; , , subclavians ; , ZJ,right aud left innominate j a, aorta ; A,il-s origin. (Tliis and five following figs,after Gabbod.). Fig. 33.—Cakotids of Bittebn. LteTTEBING AS IN FiG. 32. (^

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1898