232 Now, we have a topic here of radiochemical studies, the exteot to which radio chemistry should enter this environmental anaytical picture, John Harley, that seems to be very squarely in your area of interest. MR, HARLEY: involved in that, too. There are a lot of other people We have been doing some wowk on things that I am not sure are entirely useful, such as this fractionation -- geographical fractionation of material -- Alderson Reporting Company Washington, D. C. and that is certainly something that we would continue, 10 In other words, our initial work was all on strontium. il now find that we can use cerium moderately well as a long 12 term base line similarly to that they use molly for in 13 short term studies, 14 We That seems to be fairly constant. I think perhaps after some of us can talk this 15 out a bit, 16 run in these different places so we cap use the results from 17 one laboratory to another, 18 cerium might alwags be valuable for us in our comparisons. 19 it is going to bevery-necessary to decide what is Certainly I think something like We know pretty definitely that we may hae the 20 ruthinius problem here, and itcertainly is present in high 21 percentages. If what the British say is correct, we will be wanting to get a lot of information on that. 23 We hae found that relations are not such that we ARC Bong 24 can get all the information we would like. 25 frequently have to scratch arounlwith other people to work « eC oi oy ros Therefore, we