In cauterizing the inferior turbinate the success of the operation depends on the cut being deep and clean in order that the resulting cicatrix will produce sufficient contraction of the interturgescent tissues without destruction of the functions. When the action of a saw or bread knife is thought of, a glance at the illustration will at once suggest its utility. By use of very slight pressure and a little to and from motion this tip will bury itself into the tissues as if they were butter. In addition to the saw principle the form of the knife seems to retain the heat, permitting absolute control and preventing the distressing tearing and hemorrhage that frequently accompany the cautery operation. I apply the knife cold and do not remove it until again cooled. Any jeweller can remodel the ordinary tip to this shape.