I. Physiology.
A quaint old Latin author asks, "What is a Beard? Hair? and what is Hair? a Beard?" Perhaps a Beard may be defined more clearly by stating, that in its full extent it comprehends all hair visible on the countenance below the eyes, naturally growing down the sides of the face, crossing the cheeks by an inverted arch, fringing the upper and lower lips, covering the chin above and below, and hanging down in front of the neck and throat:— moustaches and whiskers being merely parts of a general whole. The hair of the head differs from that of the Beard. In an enlarged microscopical view, the former is seen to resemble a flattened cylinder, tapering off towards the extremity. It has a rough outer bark, and a finer inner coat; and contains, like a plant, its central pith, consisting of oil and coloring matters. At the lower part it is bulbous, and the pith vessels rest on a large vesicle. The bulb is enclosed in a fold of the skin, and imbedded in the
