blister undisturbed and allow the fluid to be reabsorbed. Strangury and congestion of the kidneys sometimes follow the prolonged use of cantharides; to prevent this, it is sometimes recommended that tissue paper be well oiled and interposed between the plaster and skin. And as camphor corrects the action of cantharides upon the bladder, it is recommended that in case of a child particularly, a solution of camphor in ether be sprinkled upon the plaster. If a blister is applied to a young child, it should be carefully watched and not allowed to remain too long. In two or three hours the skin will be well reddened, and the plaster may be removed and a poultice applied. TINCTURE OF IODINE is sometimes applied as a counter irritant, but several coats and repeated applications are necessary to produce a blister. Local stimulation can be obtained from bits of cantharideal plaster kept on for an hour or two, and removed or changed before the point of vesication is reached. The same effect follows the rapid passage of a hot flat iron over a piece of brown paper or flannel laid upon the skin. It is generally best that the flannel should be wet first; and should an emergency arise when from hemorrhage or some other cause there is danger of immediate collapse, the application of heat in this way may rouse the sufferer and prevent immediate death. This or the actual cautery is sometimes used to relieve lumbago, or rheumatism. If you have thereby a slight burn, you may dress it in a solution of bicarbonate of soda and cover from air with rubber tissue. If a SETON is inserted in the skin, the silk should be moved daily and the matter well cleared out. WET CUPS are applied to relieve congestion and to abstract blood, the skin being first scarified. DRY CUPPING is most practiced for the relief of pain and to draw the blood away from an inflamed organ. Small tumblers may be used in the absence of cupping glasses, if the edges are smooth. When you apply the cups have at hand also a lamp, a saucer of alcohol, a bit of sponge or a wad of lint fastened to the end of a stick. Have the cups perfectly dry, dip the sponge in the alcohol which you will ignite from the lamp, (they being near the patient), and let it burn for an instant in the inverted glass, then withdraw and extinguish it, and rapidly place the cup over the intended spot. As the heated air in the glass condenses in cooling, the skin will be forcibly sucked up, and the blood drawn towards the surface. Each cup will remain on from three to five minutes. Do not attempt to apply them to a bony and irregular surface, and be very careful not to burn the patient by getting the edges of the glass too hot. To remove the cup press with the finger close to the cup so that air will be admitted. WET CUPPING will be attended to by the physician, who will provide the scarificator, and adhesive straps. See that plenty of soft towels are provided.