Saba # 7 led We ow wee : lta) formal understanding imposes serious obstacles in the daily dealings with other elenents of the Japanese coverment. In addition, concern was expressed over the welfare of ABCC personnel and the ability to recruit additional or replacement personel due to the post~-treaty unrest and anti-American sentizent which sow appears to be widesprea:. In view of these problems, the Director believes strongly that continucd operation in Japan would be possible only by outright attachment to the Far Fastern Command, afflliation with the U. i. “nbassy had been considered desir- able to avoid the stigma of the military in a research operation so intimately connected with the Japanese community, while at the same time enabling most of the pre-treaty privilezes accorded to .BCC. If, however, the anti-American sentiment growa to the extent that the safety of ABCC personnel would be jeopardized, arrangements with the Department of Defense may be necessary. The so.ution would be either to have the Ospartment of Defense take over the operation of ACC, or to include it se one of the contractors of the Par Eastern Command essential to the sllitary operation and in accordance with the Administrative Agreement. The National Academy of Sciences, contractors to the Commission for operation of the project in Japan, have been authorized to explore with the Department of Defense alternative mechanisms on a preliminary basis by which a change-over to the Far castern Command might be effected. Visit to Harwell, Sngland. (UNCLAJSIFIED) During a recent visit to Surope Dr. Paul 3, rearson of the Hfology Branch visited liarwell, =ngland. The following items pertaining to the program of the Harwell group were reported by Sr. Pearson: Le Neutron Zffects on ‘lice. A small pile is used in this preject, and S00 male micie (about 5 weeks old) are exposed continuously to neutrons. Three levels of exposure are used, namely, 6 rep (roentgen equivalent Sat © 2 me AZ e i.) ° On ese £ weeks, and this condition cantinues even after removal of the zice S develop in uost of the mice. 3 & S| 5 5 <9 ' 5 ~ Q 6 m from the exposed fleld. = s Pe n 4% physical) per week; 9.7 rep per week; and 0.3 rep per week, The mica receiving 6 rep per week become completely sterile after about 12 _ al ~ ons “|] “ it | § 4 ‘B a os Ap. roximately 50 rep reduces the weight of the teates by 50%; this weisht change of the testes is considered by Or. R. £. Hole of Harwell aa a more sensitive measure of radiation injury ‘han. change in t::e weicht of the spleen, ‘Rt Hazards of Agricultural Contamination. rs 2 55 Mm U MO i] DATE » The Harwell group bas given & great deal of study to this problem. Primary interest canceras pasture and zrasing areas that might be contaminated from radicactive fallout. The problem in the United Kingdom could be much more acu's than in the United States due to the per square mile, and the fact that over neentration of livestock of the food supply ia imported. Thus, a loss of homs production should imports become restricted would be 4 serious problem. OFFICE p> |_.----_- eee Form AEC-318 It has also been found that cataracts