twofold, as partly belonging to the kind of Exercise, and partly to those things which are outwardly to be ap∣plied, for which caus we have reserved it unto this place, that it might be the last in the number of the Exercises, and immediately precede the external applications. This must be done (at least in the Winter time) by a warm fire, the Child being in all respects well fortified from the injuries of the weather, and the violences of the cold Ayr. Some Nurses administer this Friction with a hot hand, others with Linnen Cloathes dried and heated; others with woolen Cloathes; and o∣thers again with a little Brush, and indeed some do most commend the Brush, and prefer it before the other waies, but becaus there seemeth to be so little difference in all the waies, we approve them all, and leave the choice to the Nurses wisdom. But let them begin this Friction at the Back Bone, the Child being laid upon his Belly, and let them stir their Hands now up∣wards, now downwards, now on each side, then to the Thighs, Hips, Legs, Ankles, the Soals of the Feet, and all the parts of the Body, those excepted where there is a sticking out of the Bones, and there let them rub the hollow part of them. This action must not be conti∣nued beyond a moderate ruddiness raised in the parts, lest the Natural heat should be scattred, rather than che∣rished. This kind of exercise is most agreable to weak Children; and such as are scarce able to stand or go. For it supplieth the defect of running up and down, ex∣citeth the Natural heat, summoneth the Vital, and at∣tracteth the Nourishment to the affected parts. Yet we grant that Friction doth not so powerfully summon the heat and nourishment to the Flesh of the Muscles, al∣though perhaps it doth more to the Skin, as exercise doth properly so called, and consequently that it must