Thorough cooking destroys the parasite. The disease is most frequent among the Germans who eat raw ham and sausages. =Symptoms.=—These are sometimes absent, especially when only a few are eaten. If large numbers have been ingested, gastro-intestinal symptoms develop in the course of a few days. Vomiting, diarrhea, and pain in the abdomen may be present. In from one to two weeks muscular symptoms develop. There is fever, muscular pain, especially during motion, and the muscles are stiff, tense and sometimes swollen. When the respiratory muscles are involved dyspnea is produced, which may prove fatal. Eosinophilia is a helpful diagnostic point. Edema, especially of the face, is an important symptom. Profuse sweats, itching and tingling of the skin have been observed. =Diagnosis.=—Epidemics of this disease are more easily diagnosed than an isolated case. Among the Germans, if cases of apparent typhoid fever occur after a picnic or other feasting occasion, where raw ham or sausages have been indulged in, this disease should be suspected. Examination of the stools and of the muscles will be of aid. The worms may be discovered in the pork, a portion of which has been eaten by the patient. =Prognosis.=—This depends upon the number of worms ingested. The prognosis should always be guarded. Early, marked diarrhea is favorable. =Treatment.=—Prophylactic treatment is of great importance in trichiniasis. Inspection of the meat supply, is doing much to prevent trichiniasis; although the most practical way to prevent the disease is to thoroughly cook all pork and sausages. The central portions of the meat should be well cooked. In the feeding of hogs care should be taken that they do not receive any offal, but only milk, grain, vegetables, etc. When a person is infected with trichiniasis, thorough and prompt evacuation of the bowels should be performed at once, so that the embryos will not have time to pass into the muscles, but will be ejected from the body. This should be followed by a thorough and persistent treatment for several days of the liver and intestines; treat both the liver and intestines directly and through the spine. The object of this treatment is to render all the digestive juices active, so that they may dislodge the animal parasite, and to prevent their passing into the muscles. Also keep the bowels active for several days. When the larval parasites have entered the muscles, a treatment cannot be applied to affect them directly, but the health of the body should be maintained if possible, and the severer symptoms, as the muscular pains, weakness and insomnia combated. Thorough manipulation, massage and hot baths will be of special aid in relieving the stiffness and weakness of the muscles. Filaria (Filaria Sanguinis-Hominis)