This book provides a detailed analysis of the radiation that permeates the earth's atmosphere, drawing on data collected through research conducted at the Allegheny Observatory and Providence in the early 20th century. Very offers insights into the nature of cosmic radiation, as well as the effects of atmospheric conditions on the propagation of radio waves. With its groundbreaking research and stimulating scientific analysis, this book is a must-read for anyone interested in the study of atmospheric phenomena.

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