The foregoing work is an experiment by which we obtain a clue to the development of the face in children with malposed teeth and anamolies of the jaws, with the help of the anthropologic method of measurement. The apparatus described in Part I was used for that purpose. The new stereograph performs a positive service in the study of the puzzling question of the skull, whether the problems are anthropologic, orthodontic, or articulation. It was previously used for such research work. With the help of my stereograph on the gnathostat models, we can obtain graphic results by means of our orthodontically taken measurements and make a map with it; the stereograph is thus an occlusograph at the same time. As all the models are surveyed on the ear-eye plane, these drawings have an entirely different value from those of Stanton. The very practical person will give preference to the simplest possible proceedings. He may use my gnathostat, the facebow without a bow part for the height and length of the head, and the chin cap without the gonion screw. The orbital and tragus screws are firmly embedded in the poured model, these can be trimmed according to these points, the posterior surface then forms the bitragial plane, the superior, the ear-eye plane, and the under surface forms the gnathion plane. These particular distances can be measured on the plaster model, and be sketched on it. In this way, we obtain the most direct and most accurate transposing of the width, length, and height measurements. With the horizontal needle and contra-angle, and with the help of a symmetric scope, complete calculations can be made in all three dimensions. The value of these measurements is doubted on the ground that for orthodontia, the etiologic factors alone, are important. I believe however, by our exact measurements, we can, with this assistance, accurately localize the increased and retarded development, and be able to contribute toward a classification of etiology.