Loss or discoloration of the hair is generally due to the lack of hair-building elements in the blood or to sluggish circulation in the scalp and a diseased condition of the hair follicles. Nothing more effectually stimulates the flow of blood to brain and scalp or promotes the elimination of waste matter and poisons from these parts than the head bath together with scalp massage. Under no circumstances use hair tonics, dandruff or eczema cures, or hair dyes. All such preparations contain poisons or at any rate strong antiseptics and germcides. Dandruff is a form of elimination and should not be suppressed. When the scalp is in good condition, it will disappear of its own accord. The Diagnosis from the Eye reveals the fact that glycerine, quinine, resorcin and other poisonous antiseptics and stimulants absorbed from scalp cures and hair tonics and deposited in the brain are in many cases the real cause of chronic headaches, neuralgia, dizziness, roaring in the ears, loss of hearing and sight, mental depression, irritability and even insanity. Cold water is an absolutely safe and at the same time a most effective means to promote the growth of hair, as many of our patients can testify. Whenever you have occasion to wash the face, wash also the head thoroughly with cold water. While doing so, vigorously pinch, knead and massage the scalp with the finger tips. When feasible, turn the stream from a hydrant or a hose upon the head. This will add the good effect of friction to the coldness of the water. Have your hair cut only during the third quarter of the moon. The ladies may clip off the ends of their hair during that period. Skeptics may smile at this as another evidence of ignorance and superstition. However, "fools deride," etc. The country people in many parts of Europe, who are much closer and wiser observers of Nature and her ways than the conceited wise men of the schools, do their sowing and reaping in accordance with the phases of the moon. In order to insure vigorous growth, they sow and plant during the growing moon; but their cutting and reaping is done during the waning moon. (14) The Eye Bath For the eye bath the temperature of the water should be as cold as the sensitive eyeball can stand, but not cold enough to cause serious discomfort. A few grains of salt may be added to make the water slightly saline. Submerge forehead and eyes in a basin of water, open and close the lids under water from six to eight times; repeat a few times. Bend over a basin filled with water and with the hands dash the water into the open eyes. Fill a glass eye-cup (which can be bought in any drug store or department store) with water, bend the head forward and press the cup securely against the eye; then bend backward and open and shut the lid a number of times.