Report by the Office of Strategic Services on January 2nd 1945 on the Japanese use of disease serums and cultures and their development in the Japanese Department of Epidemic Defense and Water Supply Branch at Kiukiang.
Letter from Col. H.W. Dix to 146 on April 6, 1945 regarding intercepted orders issued by the Japanese government to disseminate germs by plane along the Ledo Road.
Weekly Intelligence Reports regarding sources of information and troops in northeast China, from the intelligence officer to the commanding officer under office of naval intelligence, January to April, 1937