DEFINITION.--Scurvy is an acquired condition of the body whose essential feature is a perversion of nutrition, which gradually arises from prolonged employment of food deficient in succulent or fresh vegetable matter, and progresses uniformly to a fatal issue, in a longer or shorter time, if the dietetic errors remain uncorrected. This condition becomes manifest by a change in the complexion to a dull yellowish or earthy tint, lassitude, marked decrease in the muscular power, depression of spirits and mental hebetude, breathlessness on the slightest exertion, minute flecks at the roots of the hairs, especially those of the legs; and, later, hemorrhagic effusion into the skin, forming blotches and spots of varying sizes and aspects, which may finally slough and lead to obstinate ulceration; sponginess of the gums, which bleed easily and break down into a detritus that impresses a malodorous taint upon the breath; ecchymotic staining of mucous and serous surfaces, and, in advanced stages of the disease, effusions of bloody serum or of blood into the cavities and tissues of the body. HISTORY.--Obscure passages in certain of the ancient medical classics (Hippocrates, Celsus) and historical works (Pliny, Strabo) have been considered as descriptive of scurvy, but the earliest trustworthy accounts are to be found in the writings of the thirteenth century. Jacob de Vitry describes an epidemic which occurred among the troops of Count Saarbrücken besieging Damietta in 1218, and Sire de Joinville another epidemic among the troops of Louis IX. lying before the same town in 1249. On both occasions the sufferings of the men were inexpressible and the mortality fearful. The disease was directly traceable to defective supplies of fresh vegetable food, aided by exposure to wet and cold weather, fatigue, and mental depression.