SESSION IV WARREN: downwards, 213 It's interesting that the tropical rains don't leach it The tropical rains should produce quite a bit of water to leach this down into the soil. DONALDSON: fixed, Is it cornplexed or fixed? It doesn't leach to any degree, It stays pretty well WOLFE: It's accumulated in the soil algae in that upper layer, isn't it? That is what the radioantogeaph shows, DONALDSON: Yes. WOLFE: And the algae are only in about the upper couple of inches. Below that it's apparently too dark, TAYLOR: Is there any animal study that correlates with the ob- MILLER: Not in the wild state, but in laboratory anima!s certainly. servation of malformations of human children that were in the fetal state two or three months or so when the irradiation tock place? Is there any animal counterpart of that that's been seen in any of the bomb test irradiation? TAYLOR: How about fish, for example? When the fish are irradiated when they are developing eggs, do the eggs lose their fertility like that? DONALDSON: You can go the whole gamut. If you take chronic exposure over long periods of time and pick a level, say a half roentgen per day for a 90-day total exposure of 45 raentgens, for example, and follow the fish through several generations, instead of getting a damaging efiect you find a stimulating effect. Double the dose, and the same sort of things happens. Or double it agzin and i'1l give you the answer in part tomorrow, I'll be a midwife tomorrow while you're enjoying yourselves here, We'll have several .undred fish coming back from the sea that were exposed to 2.5 r from a cobalt source as eggs. *(Cont'd) has dropped to about one-half that of the previous rate of excretion. This may be due to the fact that the people are buying and eating more commercial food. : .