In the use of galvanism we may speak of two different methods. First, what is called cerebral galvanism, second general. By experimentation it has been clearly demonstrated that all the deeper tissues and organs of the body, such as the brain, spinal cord, liver, etc., may be influenced by galvanism. In cerebral galvanism the object is to influence the brain and spinal cord. In applying it to the head, a sponge or cotton-covered electrode 4-5” in diameter may be used. The positive electrode is applied to forehead, the negative at nape of neck, using a current of 5-10 milliamperes for from five to fifteen minutes, care being taken not to suddenly make or break the current, as this would produce a disagreeable shock to the patient. The circulation of the brain may be affected also by placing an electrode at the nape of the neck, and a smaller electrode (1-2” in diameter) passed up and down along the border of the sternocleidomastoideus muscle, using a current of 3-5 milliamperes. Galvanism used in this way is beneficial in such conditions as cerebral anemia, neurasthenia, insomnia, etc. In applying to the spine, one electrode may be used at the upper and the other at the lower part of the spine; or a large-sized electrode may be placed over the abdomen, and the other electrode moved up and down the spine without breaking or interrupting the current, the strength of which may be from 10-20 milliamperes, and the duration of each application varied to suit the condition of the patient. This treatment is indicated in such disorders as neurasthenia, infantile spinal paralysis, locomotor ataxia, etc. General galvanization may be given by placing a large-sized electrode at the spine, over the abdomen, or at the soles of the feet, the other electrode, smaller in size, being passed over the entire surface of the body without interrupting the current, which may be from 5-8 milliamperes. This procedure will stimulate the peripheral circulation, elimination, and nutrition. The muscles may be exercised by using an interrupted current of sufficient strength only to cause contraction. General galvanization is very beneficial in such conditions as neurasthenia requiring the rest treatment, convalescence from various diseases, paralysis, multiple neuritis, etc. In the use of electricity it should be remembered that patients show idiosyncrasies as in the use of drugs, so that each case should be given the amount of electricity best suited to individual peculiarities. Unless this point be kept in mind, we will be surprised to find at times that the use of electricity aggravates the patient’s condition.