Sometimes there is a chronic one-jointed inflammation usually of the knee. The tendon sheaths and bursae may be involved alone, or with the joints. Gonorrheal septicemia may result from arthritis. This is protracted. Iritis is a most frequent complication. The urethra source of the infection must be cured. Treatment.--Keep the joint quiet and you can use an ice cap for the pain. Tonic treatment with quinine, iron, and arsenic in chronic cases is needed. The joints should be kept at rest in acute cases. In chronic cases massage and slight motion. The tonics must be chosen for each individual case. One afflicted with this must be under treatment for a long time. HIP JOINT DISEASE. (Morbus Coxarius).--This is more common in children than in adults. Cause.--It is usually tubercular. Symptoms. First stage.--It may be overlooked; slight lameness, a little stiffness is noticed at times. The muscles begin to dwindle. Second stage.--Child limps very perceptibly, dwindling is more apparent. Pain appears. Treatment.--Absolute rest. Lying down treatment if begun early arrests this disease often. Build up the system. Splints and brace are needed sometimes. KNEE JOINT DISEASE. (White Swelling).--This is simply a tuberculous knee. Treatment.--Rest. Stop motion of the joint by some form of splint or plaster of Paris cast. Get a good physician at the beginning in these cases and you will save lots of after worry and blame for yourself. It does not pay to wait. These joint diseases will progress, and often treatment is begun months after trouble is seated. It ought to be criminal negligence and dealt with accordingly to neglect such diseases. Parents should never forget that they have endowed their children with such a constitution, and they should be glad and willing to correct it as far as they can. [INFECTIOUS DISEASES 237] LEPROSY. Definition.--Leprosy is a chronic infectious disease, caused by what is called the "Bacillus Leprae," and is characterized by the presence of tubercular nodules in the skin and mucous membranes (tubercular leprosy), or by changes in the nerves (anaesthetic leprosy). These forms are separate at first, but ultimately they are combined and there are disturbances of sensation in the characteristic tubercular form.