In this paper the author treats of the Facialis nerve or portio dura of the seventh nerve.

He commences with a view of the Respiratory System of Nerves. Vindicating the term, he proceeds to shew that the Facialis belongs to this system, and that it possesses a double function and double origin. That this composite condition of the nerve is not, however, like the double nerves of the spine (which have a toot for motion and a root for sensation), but that its origins shew it to be connected with the column of voluntary motion and of the column of respiration.