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Updated: May 20, 2025
We have already seen that the embryonic bird has the long tail of his reptilian ancestor. In early embryonic life it has gill-slits leading from the pharynx to the outside of the neck like those through which the water passes in the respiration of fish. The Eustachian tube and the canal of the external ear of man, separated only by the "drum," are nothing but such an old persistent gill-slit.
And then I can always go to work and earn something," he smiled at her, "giving information to a thirsty world about the gill-slit, as you call it. It would be fun, earning money for you; I'd like to do it." Mélanie smiled back at him, but left her chair and wandered uneasily about the room, as if turning a difficult matter over in her mind. Aleck stood by, watching.
If we appeal from adult anatomy to embryology the case becomes all the worse for us. Our ear is lodged in the gill-slit of a fish, our jaws are branchial arches, our hyoid bone the rudiment of this system of bones supporting the gills.
Very well; but tell me; has that amorphous gill-slit oh, no, the branchial lamella has it behaved itself and proved to be the avenue which shall lead you to fame?" Mr. Van Camp stood silent through this flippant badinage, and calmly waited until Miss Reynier had settled herself.
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