tain point a certain distance from the corner of the broad top of the box, the side with the picture and product label, as pictured here, the side which reads Morinu, the broad flat side laid flat. The very tip of the knife, I say, discovers probingly a certain point near one corner which offers the proper resistance without too great a resistance, without too little a resistance, to penetrate this membrane. Too close to the corner is found to be too hard, too resistant, too unwilling, although 