"JUN 16 1994 =n aD=228 (0X) Secret Naval Radiological Defense Lab, onthly progress report on NRDL participation in aD-223 (0X) Naval Radiologica’ Defense Lab. Operation Greenhouse, PC, Tompkins July 15, 1950 54 pp Tompkins, P AD=237 (0X) Confidential Naval Radiological Defense Lab. Monthly progress report on aD-237 (0X) L participation in eration Greenhouse. P.C, Tompkins August 15, 1950 47 pp Greenhouse C Naval Radiological Defense Lab. : Tompkins, P Greenhouse C AD-249 (OX) Confidential Naval Radiological Defense Lab, AD-249 (OX) Naval Radiological Monthly progress report on ‘NRDL participation in Operation Greenhouse, P,. C. Tompkins September 15, 1950 83 pp Defense Lab, Tompkins, P Greenhouse C 14