Feb. 1, 1962
Dear Dr. Nirenberg:
Let me express the thanks and appreciation of the Committee that arranged the recent symposium on RNA coding for your kindness in having come here and for the truly remarkable contribution that you made to it. It was inspiring to the older and to the younger hearers alike to follow the course of the marvelous break-through that you described to us.
We hope this will by no means be you last visit to Bloomington.  You have made many permanent friends here and we shall be watching your future work with the highest hopes and expectations.
With kind personal regards from all of the Committee,
Yours cordially,
H. J. Muller