Mr. Libby referred to a French request for forty kilograms concerning the proposed use of U -235 and requested a memorandum of this material. He said he believed that such material should not be contained in uranium concentrations exceeding twenty percent enrichment. Iv.r. Gardner reported that Ambassador Lodge had recently presented an unclassified AEC Technical Library to the United Nations. The Commissioners then discussed with Mr. Fields and Mr. Hall the construction progress of the Belgian reactor. Mr. Strauss requested that the Commission be informed periodically of the progress on this reactor and on any other reactors to be built for foreign use. Nm. Strauss also said that AEC possibie to ensure that the Belgian reactor should do everything is completed in time for the

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