During the two weeks of June 11 to 23, this summer, a conference was held in Geneva, Switzerland, to discuss present and future problems in the building of high‐energy accelerators, instruments for using them, and the results obtained or to be expected from them. The three to four hundred physicists present represented more than twenty countries, ranging alphabetically from Australia to Yugoslavia, with the largest delegations, of over 50 each, from the United States and the Soviet Union. Hosts for the conference were the members of CERN (European Organization for Nuclear Research): the organization, established by 12 Western European countries, that is building a laboratory for research in nuclear physics located just outside the city of Geneva.