Unfortunately fever has been treated in the past according to set and rigid rules. As soon as the temperature of a patient rose from 98.6 deg. and 99.6 deg. to 100.4 deg., it was pronounced to be fever, and preparations were made to treat it accordingly. The treatment became more energetic the higher the fever rose to 105.8 deg. and 107.6 deg.. It was said that under all circumstances the temperature must be lowered to normal. This idea is decidedly wrong and most dangerous for the patient. For, while a calm and phlegmatic patient may withstand this strong reduction of excitement in his internal organs, which in fact require it, the procedure necessary to bring it about, as a rule exceeds what the nervous patient can endure. The fever should only be reduced in accordance with the strength of the patient, otherwise extreme irritation must ensue, such as has caused the death of hundreds of thousands in the past. It is better, therefore, to leave a nervous patient in his fever and strengthen him by various devices, so that he may overcome it. Later he may require and, consequently, be able to withstand stronger measures. For this purpose I recommend simple ablutions, in some cases the application of abdominal packs for half an hour _using two-thirds water and one-third vinegar_, as previously prescribed. In addition, the natural vigor of the patient is to be strengthened by administering to him, at intervals of from half an hour to two hours, Dechmann's Tonogen and Dechmann's Plasmogen alternately. The treatment must be in proportion to the strength of the patient. Thus the quiet, energetic temperament can endure more extensive packs; his nature in fact requires them. His body may be completely packed or at least three-quarters, by placing the moist sheet around his entire body except the arms, while the woolen blanket is either wrapped around the whole body, including the arms, or, as before, leaves the patient free to move his arms, which are then only covered by the bed-clothes. A patient of this kind may also be treated with ablutions or put into a half bath at 75.2 deg., while cooler water is poured over him. Young and strong patients have endured even cooler baths as powerful stimulants. The nearer a patient approaches to a nervous, weak condition, the more caution is required to allow him hike warm baths only, or, still better, ablutions at 77 deg., which may be made severer by not drying the patient. It is very beneficial to weak patients to frequently wash their hands, face and neck, without drying them. A very careful treatment of the hair is also a great necessity, especially for women. Clean and well combed hair is very beneficial to a patient. Slight ablutions of the head and combing the hair while wet, are very cooling and refreshing.