"Office of Scientific Research and Development, National Defense Research Committee." Originally published: New York : McGraw-Hill, 1951, in series: Radiation Laboratory series.

1. Elements of the problem -- 2. Theory of propagation in a horizontally stratified atmosphere -- 3. Meteorology of the refraction problem -- 4. Experimental studies of refraction -- 5. Reflections from the earth's surface -- 6. Radar targets and echoes -- 7. Meteorological echoes -- 8. Atmospheric attenuation -- Appendix -- Name index -- Subject index.