Horses appear to like sand as a bedding, for they often show a great inclination to roll on it when they find it under them. It makes a cool bedding in hot weather. Sea sand should on no account be used, because horses are liable to eat it. Many cases are on record of horses which were bedded on sand, eating enormous quantities of it with fatal results. The indulgence of this form of depraved appetite is no doubt prompted by the presence of salt in the sand, and was probably strengthened in the cases in question, by the fact that the afflicted animals had previously suffered from deprivation of this essential adjunct to their food. As sand obtained even from inland places may very possibly contain traces of salt, it is evident that if we are obliged to employ sand as a bedding, we should be doubly careful to give the horses on it a full allowance of salt in their food.