THE JOHNS HOPKINS UNIVERSITY BALTIMORE 18, MARYLAND MERGENTHALER LABORATORY FOR BIOLOGY September 15 ยป 1954 Dr. Joshua Lederberg Department of Genetics University of Wisconsin Madison, Wisconsin Dear Joshuas I found your correction of my report of the Oak Ridge conference waiting for me when I got back here after the meetings in Florida, I will of course see that a note correcting the mistake is entered in Science as soon as possible. I just don't understand how I had gotten so w: wrong an understanding, but I am doubly sorry to have perpetuated a general misunderstanding. I can only say that four people here besides myself and three at Jak Ridge read the account before it went to Science and none of us picked up the mistakee Pretty awful, and I am deeply chagrineds With best personal regards, Bentley Gla ogesh