. The development of the chick; an introduction to embryology. Birds -- Embryology. ORGANS OF SPECIAL SENSE 287 mm. head-length, he identifies it positively as a rudimentary organ of Jacobson. The septal gland arises on the eighth day from the inner wall of the vestibulum, opposite the base of the vestibular tur- Z2. Fig. 165. — Transverse section of the olfactory organ of a chick embryo, of mm. head length. (After Cohn.) f., Line of fusion, e. n., External nasal process, i. n., Internal nasal process. T. 1, T. 2, Intermediate and supe- rior turbinals. binal, as a soli


. The development of the chick; an introduction to embryology. Birds -- Embryology. ORGANS OF SPECIAL SENSE 287 mm. head-length, he identifies it positively as a rudimentary organ of Jacobson. The septal gland arises on the eighth day from the inner wall of the vestibulum, opposite the base of the vestibular tur- Z2. Fig. 165. — Transverse section of the olfactory organ of a chick embryo, of mm. head length. (After Cohn.) f., Line of fusion, e. n., External nasal process, i. n., Internal nasal process. T. 1, T. 2, Intermediate and supe- rior turbinals. binal, as a solid cord of cells. This grows backwards in the nasal septum and passes to the outer side and branches, subsequently acquiring a Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lillie, Frank Rattray, 1870-1947. New York, Holt


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