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cover name was Baker, Dry Urey and Dr. Koski. Creenglass " atated A he performed | work ae an apprentice preparing: lens molds which were intended for pr. Koaki's experiments, ond that he weualdy worked fron sketches supplied by actenttate. ON. Graenglass testified that his stater, sthel, a] | “married tn 41939, and thet he knew Jultus ‘Rosenberg before the marriace. de stated that Ethel and Julius used to speak to him about the merits of the Russtan Government. | Oreenglass stated that hte wife, Ruth, came to vist hin at Los Alamos on Wovenber 29, I9dd. Ruth told David that. Julius Rosenberg had invited her to dinner at the Rosenberg home, 10 Monroe Street, New York City. At this dinner itnel told Ruth that she must Aave noticed that Ethel had not been engaging in Communi at activities. Ethel also told Ruth that _ they were not buytng the “Dat ly vorker" any more or attending “elus nectings because Julius finally wos doing what he olways wanted to do, nomely giving information to the Soviet Union. Fthel told Ruth that David was working on the atom bond project ot Loa Alamos, and they wanted hie to give information concerns) the bomb. Buth told the Rosenbergs that ane didn't think t¢ wai ‘@ good idea and deoltned to convey their requests to David. Ethel and Julius then told Ruth that she should at least tell David about tt and see if he would help. In this conversation Julius pointed out to Ruth that Russia was an ally and deserved