KOHN: K-A-L-L-M-A-N. And Dr. Shirley Gunter, who had just taken her degree in Berkeley with a very well known microbiologist, Dr. Stanier. BERGE: Her name is G-U-N-T-H-E-R? KOHN: No. G-U-N-T-E-R. Shirley Gunter. Her name, see would be down here somewhere. Let's see. That's it. They were the two people I started with and then they moved on and some others came, eventually a fellow by the name of Ludwig wholater became a professorat Irvine. Paul Guttman and Donald Baily, during that time we did a variety of experiments. Dr. Gunterfirst did this work which is cited over here on page two. Gunter and Kohn, The Effect of X-rays on the Survival of Bacteria and Yeast. Because we wanted to use those organisms in determining the RBE of the high-energy machines. She did an extensive survey there, and then went on andvisited New York and Texas. Dr. Kallman did a lot of work on micein the lab. BERGE: I noticed from reading other bibliographies, for example, Dr. Tobias, that during the 1950's there wasa lot of interest in studying radiation affects on yeast cells. Why? KOHN: Well, bacteria, as you probably know,have only one chromosome. Yeast have pairs of chromosomes. You can grow them in suspension. They grow like bacteria, and are very convenient to work with. BERGE: As opposed,to say,fruit flies? KOHN: I wouldn't say that yeast are opposedto fruit flies. I just say that.