Abstract
The elastic scattering of protons by 19F, 9Be and 23Na has been studied over a range of angles and energies between 0·5 and 2·6 Mev. The anomalies observed in the scattering cross section curve at resonances excited in the compound nucleus have been analysed using dispersion theory. Resonance energies, widths and partial widths are deduced, and conclusions are given RS to spins and parities of various states in 20Ne, 10B and 24Mg based on this and other evidence.