If it be from the first thing mentioned, may ye know, should the body be full of humours, or excessive blood, or the force puissant, and the age and other local matters agreeing, then it is meet to let a vein at the inception of the matter, that is, the medial vein, and that at the top of the nose thereafter, (especially in the case of youths) for they preserve the upper members from the malice of the pustules. There is no danger in letting them (i.e. the veins) in children. If it