LIBaTs that soae fishes live auch longer than others and you don't want fish that are toe olds he seexed to think that a tuna fish was very good and then you just teke ob bones from a tuna fish. So it would sees that you could sanple the biosphere of the ocean pretty easily. You take these bones and calcine thea and pro-ess them and measure the yttriwsa in them. VOICz: Its perfectly siaple. When you say the ocean is tie best mixed meiium, do you mean lateral mixing or vertical aixing? Kell, I think I mean principally lateral sixing and LIBBYs vertical mixing to perhaps a depth of a thousand meters, thru the life sone anyhow. Certainly it isn’t perfectly mixed in the full depth, bot it is mized in as far as light existe in the sea to any appreciable extent down about 200 or 300 meters. ‘¢ is mixed, in other words, predict that the strontiuga content of sea water will not vary widely froa spot to spot, this, however, it would be wise to test it. What do you think vr. Kulp atout this? low many samples would you estimate ought te be taken, say of the Atlaitie Ocean in this pilot assay? KUL? s I would think I would take about 10. Tres a tantra «ft Bosartivears oo : bist aryars “Eta , . cE Ta .. Gy “; abet ~ a 7S