’ ja, by eee a Te Oe? D ? sia U. S. NAVAL RADIOLOGICAL DEFENSE LABORATORY Su.” A 3370135 RY! SAN FRANCISCO 24. CALIFORNIA AlSse1 7 SUL ien5 el Agh Director Lindeken Radiation Laboratory J University of California Garden sa Bldg. 50, Room 236 Berkeley, California Neyer war z Dear Sirs During a recent field operetien two senbers of your staff, James F. Ball enf Car] L. Lindeken, served in e supervisory capacity with the group responsible for the rediologiesl sefety of Task Group 7.3. This Leberatery wishes to express its appreciation for the o og “3 A ] end willing services rendered by these iniividuels. ‘The physics experience which they brought into the project was in « large part respensible for ite successful cenpletion. 2 4g Ss 9 Tee sedership and initiative provided by these wen was an inportest oe fedter in the emellent sheming unde ty Proj. 0.17 on this Operation. Very truly yours, -