Experiments on Cosmic-Ray Mesons and Protons at Several Altitudes and Latitudes

Experiments to obtain further information about the meson component and the nucleonic component present in the atmosphere have been carried out near sea level, and in a B-29 aircraft flying at different altitudes and latitudes, using G-M counters simultaneously in delayed coincidence and in anticoincidence. A summary of the results obtained is given in Section V of this paper.