RINGWORM, a disease occurring in three varieties, in one of which it attacks the scalp, in another the beard and in the third some part of the body. In all cases it is due to the pres ence of a vegetable parasite, consisting of minute round bodies, and of thread-like struc tures formed of rows of rod-shaped bodies of a beaded appearance. This is the growing fungus (Trichophyton tonsurans) and its spores, and wherever ringworm occurs this is present between the layers of cells of the scarf-skin, in hairs and hair-sheaths. Ringworm of the body (Tinea circinata) is the name given to the dis ease when it occurs on non-hairy parts of the body. It is most common on the face, neck and trunk, but it also occurs on the hands, arms and wrists. It consists of small circular patches, rose-colored and slightly raised, covered with small branny scales. Usually round the margin is a ring of very small blisters. The spot is the scat of a tingling and itching sensation. It spreads around the margins, and as it spreads the centre heals up, so that a large red ring with a pale centre is formed. Ringworm of the
scalp (Tinea tonsurans), identical with favus (Tinea favosa), begins with small red patches like those described above and spreads at the margins. It involves the hairs, which become penetrated by the fungus, and are dry, dull and twisted. They are easily pulled out and become very brittle. The affected patch becomes covered with a grayish-white powder. Inflammation may he produced and crusts formed. This variety of ringworm is commonest in children. Ring worm of the heard (Tinea sycosis) is similar to the scalp variety. A lotion of bichloride of mercury is often sufficient to kill the fungus, but if it prove ineffectual glacial acetic acid may be painted all round •the spreading margins of the ring. In ringworm of the head and beard the hair of the diseased patches and for a little distance beyond should be cut short, and crusts should be removed by poulticing, washing with water and soft soap, etc. The general health should be maintained by the use of tonics and otherwise. Ringworm is very contagious.