Further Observations of Radio Transmission and the Heights of the Kennelly-Heaviside Layer

The results of further observations ot radio transmission phenomena associated with the reflections of radio pulse and spark signals are outlined and a brief theoretical consideration of the form of index of refraction variation best adapted to explain the observed phenomena given. The discussion considers the relation of this index of refraction variation to that discussed in a previous paper and that recently considered by Breit. The results of long-wave field strength observations are also presented. Evidence for a considerable diurnal layer movement is found from the short-wave observations of layer height.