Note e — BOOK IV.

For the affording this oily or mucilaginous Matter, there are Glandules very commodiously placed near the Joynts, so as not to suffer too great Compression by the Motion of the neighbouring Bones, and yet to receive a due Pressure, so as to cause a sufficient Emission of the Mucilage into the Joynts. Also another Thing considerable is, that the excretory Ducts of the mucilaginous Glands have some Length in their Passage from the Glands to their Mouths; which is a good Contrivance, to prevent their Mouths being oppressed by the Mucilage, as also to hinder the too plentiful Effusion thereof, but yet to afford a due Expressure of it at all Times, and on all Occasions, as particularly in violent and long-continued Motions of the Joynts, when there is a greater than ordinary Expence of it. See Cowper’s Anat. Tab. 79.