2. _Ja-suen._ Gums swollen; little by little they are corroded and destroyed by ulceration, which leaves the roots of the teeth bared; the patient has an aversion for hot food; continued pain in the teeth; discharge of purulent and fetid mucus; by the slightest exposure to cold the pain becomes very violent. This affection is to be combated with internal remedies and local treatment (frictions with medicated powders; application of an ointment of very complicated preparation). 3. _Tchuen-ya-kan._ The gums are painful for a few days; apparition of the root of the tooth; absence of ulceration. Children of five or six years of age are frequently exposed to this malady. The best means of cure consists in the extraction of the tooth. There are, besides, various internal and external remedies prescribed. One of these latter contains verdigris and three other ingredients. Among those to be used internally there is a decoction prepared with twelve different drugs, two of which are mint and rhubarb. The quantity of rhubarb is about seven and one-half grams; therefore, this prescription is certainly intended to act as a purgative. 4. _Ya-ting._ The right or left gum suddenly swells; a tumor forms of about the size of a grain of sorgo; in the beginning it is red, afterward black; severe pain in the cheek and neck; itching in the cheek; the tumor afterward bursts, giving exit to blood, and becomes black; it ought to be pricked directly (before it opens of itself) with a silver needle; blood of a violet color will flow from it, which should be left free course until it regains its ordinary color. The sufferer has at the same time pains in the stomach, great thirst, abdominal pains, and sometimes even delirium. 5. _Ya-jong._ Gums swollen and painful, abscess, fever, swollen cheeks; great thirst, and vomiting of a liquid kind; dejections dry. The treatment consists in the methodical use of certain medicines to be used internally, among which is rhubarb. If one neglects to make use of this treatment, an ulceration sets in with discharge of a purulent and sanguine mucus; it is then necessary to rub the part with a medicinal substance called by the Chinese, _ping-pang-san_. Should the tooth be somewhat loose, it ought to be extracted and the gum rubbed again with the substance just now named. 6. _Tso-ma-ya-kan._ An illness common to children after the smallpox; ulceration of the gums, which turn black; fetid breath. In certain cases the gums are hard and the mucous membrane of the cheek is also attacked; all the teeth shake; there is flow of blood from the gums, upon which certain spots begin to form that are clearly distinguishable as small holes. These holes must be filled with a particular medicinal substance (named _lay-ma-ting-kouei-sse_), and, besides, one ought to make use of various other internal and external remedies.