Report by N.M. Emanuel on the U.S. Castle Bravo test in the Marshall Islands. The report surmises from fallout data that the bomb used a fission-fusion-fission design, and that the bomb contained a larger than normal amount of fissile material which induced a thermonuclear reaction.

Soviet scientific intelligence report on U.S. nuclear weapons testing on the Marshall Islands in 1954. This report concludes that the Ivy Mike and Castle nuclear detonations were thermonuclear based on gamma ray spectroscopy of fission fragments collected by Soviet aircraft over the USSR and PRC.

A series of letters between Dr. Bhabha and Prime Minister Jawaharlal Nehru covering a wide range of subjects, including the appropriate venues to voice opinions, the status of the Colaba site, meeting with the Pakistan Association for the Advancement of Science, and issues with coordination between the Ministry of Natural Resources and the Ministry of Education on scientific research and education. Also includes a copy of a letter from The Tokyo Shimbun requesting Dr. Bhabha’s presence at a forum discussing the justifiability of American hydrogen bomb tests in the Pacific.

The Hungarian Ambassador to North Korea reports on persecution of individuals in North Korea, including intellectuals, former prisoners of war, merchants, and those who came from South Korea and/or Japan.

The Hungarian Ambassador to North Korea reports on a trade dispute between North Korea and the Soviet Union.

Report from Károly Fendler, the official in charge of Korea, to the Endre Sík, the Minister of Foreign Affairs, that the interpreter at the Korean embassy told him that the Central Committee of the Korean Workers’ Party “considered the situation as ripe for the unification of the country.”

Hungarian Ambassador Károly Práth emphasizes the difficulties experienced by repatriated Koreans from Japan.

Note from Frigyes Puja to the Hungarian Ministry of Foreign Affairs regarding requests from the North Koreans for the UN session. They requested a resolution for the withdrawal of American troops, dissolution of the KDC, and admission of North Korea to the UN.

Report from Hungarian Ambassador Károly Práth on the conciliatory measures being adopted by the DPRK towards the Jang Myeon administration in the South.

Report from Ambassador Károly Práth to Budapest on a conversation he held with Deputy Foreign Minister Yu Changsik. Topics discussed included the sixth session of the DPRK’s Second Supreme People’s Assembly, the mechanization of agriculture in the DPRK, the need to increase quality in North Korean industry and the revisionism and consequent failures of Yugoslavia.