CARNEGIE INSTITUTION OF WASHINGTON 1530 P STREET, NORTHWEST WASHINGTON, D. C. 20005 October 11, 1983 Dr. Barbara McClintock Cold Spring Harbor Laboratory P. 0. Box 100 Cold Spring Harbor, New York 11724 Dear Barbara: All of us in Carnegie Institution of Washington rejoice in yesterday's announcement that you have been chosen to receive the Nobel Prize. Never has a Prize been more richly deserved. And, never has anyone better exemplified the reasons for the Institution's existence--to seek out and support the uncommonly creative individual who is engaged, in Mr. Carnegie's own words, in "basic research of a pioneering nature". With warmest best wishes, JDE:bd Yours sincerely,