SS, Paced (C A bri IN REPLY REFER U. S. NAVAL RADIOLOGICAL DEFENSE LABORATORY ‘roru, SAN FRANCISCO 24, CALIFORNIA 3-923 SHC s31t 2 WAY 1856 Dr. Ira B. Whitney, Assistant Chief U. S. Atomic Energy Commission vee ee pec a Vt ~/] CTD DEEDS Sire New York Operations Office 70 Columbus Avenue New York 23, New York Dear Ira: I have checked the list of samples as you requested, Sample 1598 is a Snail from Utirik, Sample 1634, a snail,was collected on Gejan. These were not included on the list that we sent to you and you may consider them as a bonus, Sample 737 and 1523 were accidentally analyzed by our laboratory, so cross them off your list. The two samples 1623 represent two fish from the same place, Gejan. T agree that our beta values are quite close considering the variables but I think we can get still closer, JI think the discrep- ancy in the beta count, probably lies in the conversion from c/m.to d/m, aro Be Torggt ten what standard y a used for this conversion, but we used for the beta and co ° for the gamma, J will send the com= siete gross beta and gamma values to you as soon as we get them tabulated, It will be interesting to compare them again.with your corrected values. Thanks once again for the courtesies you extended to Milne and myself in New York, we certainly enjoyed talking with you and Merril. Let us plen to keep in periodic touch regarding our respective proET amse - With best regards, Sincerely yours, fy STANTON H. COHN, PhD. Head, Internal Toxicity Branch 5002355