Notes.

[1]

N.B.—In addition to the nerves mentioned, C. Bell included, in his respiratory system of nerves, the fourth nerve or trochlearis, the phrenic and the external respiratory of Bell.

[2]

"The Origin of Vertebrates, deduced from the Study of Ammocœtes." Part X., "The Origin of the Auditory Organ: the Meaning of the VIIIth Cranial Nerve." Journ. Anat. and Physiol., vol. 36, 1902.