+Prognosis.+ The prognosis of contusions is a matter of every day importance, and it is sometimes extremely difficult to prognosticate accurately. The determining forces are principally the nature and violence of the contusing force, the tissues and organs involved, and the general condition of the patient. Even the injury of the tissues that may be easily inspected, such as the skin, may be much more severe than is apparent. In tissues of low vitality, such as synovial membrane, cartilage and ligaments of a joint, repair is proportionately delayed, whereas in highly vascular tissue it is more rapid. Contusions of tissues that cannot be given physiologic rest, such as the thoracic wall, and the respiratory muscles, respond less promptly to treatment. The general condition of the patient is an important factor in the prognosis, the most favorable being vigorous adult life without organic disease. Among the unfavorable general states are, the extremities of life, the very anemic and the plethoric, the tuberculous, the syphilitic, the diabetic, and like diatheses, while in the rheumatic and the gouty, the slightest injury may be most persistent. The starved, the overfed, the over-worked, the fatigued, the alcoholic, and those exposed to extremes of heat and cold, are unfavorably affected. +Treatment.+ Slight bruises, favorably located, require no treatment. The arrest of hemorrhage, thereby diminishing the swelling, pain, and discoloration, is important. If the hemorrhage be from small vessels, elevation, rest, and the application of ice are sufficient. Frequently the application of pressure is indicated. Hemorrhage in deeper parts, such as that occurring under the fascia of the thigh, is sometimes best controlled by adhesive strapping. If the vessels are large and the hemorrhage is rapid, it is sometimes necessary to make a free incision and apply a ligature. Evaporating lotions or elastic pressure by bandaging over absorbent cotton, may assist. If the hemorrhage be in a joint causing immediate swelling, painful from distension, prompt aspiration will give relief. This should only be resorted to under the strictest aseptic precautions, as the conditions are favorable for microbic growth. If the soft parts are so severely contused as to jeopardize the nutrition, both bandaging and ice should be withheld, and in some instances even warm applications are advised. After the acute symptoms have passed, judicious massage may be most helpful in securing early resolution. Restoration of the vasomotor tone when impaired or lost may be greatly facilitated by douching with cold and hot water alternately followed by massage. During the acute stages, physiologic rest is important; the restoration of functional use in severe cases must be tentative, guided by the response of the tissue in the form of increased pain or swelling. These phenomena should be avoided if possible. If hematomata be not absorbed they