He must wash the head well with water, for, as it is bony, to clean it with iron or wood would hurt the horse. He must also wet the forelock, for this tuft of hair, even if pretty long, does not obstruct his sight, but drives from his eyes anything that worries them; and we must presume that the gods have given the horse this hair in lieu of the long ears that they have given to asses and mules as a protection to their eyes. He should also wash the tail and mane, for growth of the tail is to be encouraged in order that the horse may be able to reach as far as possible and drive away anything that worries him, and growth of the mane in order to give the rider as good a hold as possible.