-14- Commission is interested. The level of radiation at Eniwetok as measured by the sample sent to the Laboratory has an activity level of 7.5 x 10° d/m/g, which is sufficiently high for biological work. The level of alpha activity of 329 d/m/g from the Eniwetok sample is sufficiently high to do alpha contamination studies for years to come. In recurrent tests how: could | revegetation be studied? It is difficult to do other than generalize on this question without knowing the physical changes that have been made or those which are planned for the islands prior to and after the tests. It would seem that this problem might be approached by following the revegetation and reconstruction of the soil in completely devastated areas. A pie- shaped portion of the shot island could be reserved for these studies. The re-establishment of the floral cover of the test islands could be followed by using the naturally TF 6.