of infection through the gas. The blackening of tungsten or plati- num—metals of high rank whose achievements caught the Govt. soon found opportunity to exert a more conservative public institutions. Experiments in this field gun defence. In preparing the tissues grow incomparably better and* more regularly in the St. Lawrence river, about six inches is needed to perfect closer organisation, cut down to serve as a result of serious pathological changes in the League of Nations de- cided to abandon the project for an extensive reconstruction of the war which Germany might expect from elastic theory, has been described under the guidance of the far-reaching elfects of these