that, yeah I think that's the way I would putit. So for certain kinds of problemsit doesn't make any difference because if the problem is very closely defined and if the problem deals with a particular physical aspect that underlies a biological end point, they'll come to it in the same sort of way. But, then the biologist can go off and think about the functioning of the whole animal and the physicist by and large doesn't quite. Just as the biologist couldn't go on and think of the high class physics. The biologist, of course, may tend to think of epidemiology, which is of considerable importance. On the other hand, the other physicist who came to my mind, a man by the name of WarrenSinclair, ultimately became quite interested in the effects of radiation on populations. It would take more time to think through just what the differences are. You mentioned that Stone and Lawrence didn't get along. Thinking back now,I do recall that there seemed to be something or other between the two labs. There was no pressure on me, I could do whatever I wanted. Is Lawrencestill alive? BERGE: No KOHN: No. So I can say anything I want. It may have been that Lawrence's brother exerted a certain amount of pressure to establish that lab and see to it that his brother was the chief. I really don't know. On the other hand, my general impression was, Lawrence was okay as a professor, nothing wrong, you know with his being one. Have you interviewed Tobias yet? BERGE: No, I believe several interviews were made of him in 1979. And right now he's living in Oregon. L9