A few precautions are necessary to observe. The grasping hand should carry the skin with it, not slip over the skin, as the drag thus put upon the hairs will, if daily repeated, cause troublesome boils. The use of a lubricant avoids this, and is a favorite device of unskilful manipulators. It also does away with much of the good effected by skin-friction, is uncleanly, very annoying to many patients, promotes an unsightly growth of hair, and should be avoided except where it is desired to rub into the system some oleaginous material. There are exceptional cases where a very dry, harsh skin or a tendency to excessive sweating during massage makes the use of some unguent desirable. Cocoa-oil may be used, or what is perhaps more agreeable, lanolin softened to the consistency of very thick cream by the addition of oil of sweet almonds. As little as possible should be made to serve. Too much care cannot be used to cover with stockings and warm wraps the parts after in turn they have been subjected to massage. As to time, at first the massage should last half an hour, but should be increased in a week to a full hour. I observe that Dr. Playfair has it used twice a day or more, and I have since had it so employed in some cases, letting the masseuse come before noon, and allowing the nurse to use it at night if it does not interfere with sleep, which is a matter to be tested solely by experiment. Commonly, one hour once daily suffices. I was at one time in the habit of suspending the use of both massage and electricity during menstruation, because I found occasionally that these agents disturbed or checked the normal flow. Of late, however, I continue to employ both agents, but confine them to the limbs. I have met with rare cases in which almost any massage gave rise to a uterine hemorrhage, and in which the utmost caution became necessary. Women who have a sensitive abdominal surface or ovarian tenderness have of course to be handled with care, but in a few days a practised rubber will by degrees intrude upon the tender regions, and will end by kneading them with all desirable force. The same remarks apply to the spine when it is hurt by a touch; and it is very rare indeed to find persons whose irritable spots cannot at last be rubbed and kneaded to their permanent profit. Sometimes when the patient is found to be much exhausted by massage, it is well to give some stimulating concentrated food afterwards; occasionally it may be necessary both before and after. In this case it would be well to see that the rubbing was not being made too severe.