Leprince-Ringuet asked Rossi to give a summary of new information presented at the conference and to propose nomenclature for the new particles. Before the conference, in response to the latter assignment, Rossi circulated a suggestion that particles with mass smaller than that of a neutron be designated by small Greek letters and those with larger mass be designated by capital Greek letters. In his talk, on 11 July 1953, he reported that conference results, which he had compiled with the aid of Powell and Fretter, were consistent with this scheme, which was commonly used afterwards.