Abstract
Multiple scattering has been studied experimentally for protons of energy between 0.7 and 4.8 Mev in several metals. Agreement with Molière's theory of multiple scattering is found for both the shape of the distribution function and its width within the errors of the experiment (3-5%), except possibly below 1 Mev. A Gaussian curve deviates considerably from the observed distribution at large angles, and therefore does not appear to be suitable for the description of multiple scattering.