12 March 1953
Professor A. R. Todd, F.R.S.
University Chemical Laboratory
I am glad to have your letter of 4 March, and the samples of deoxyribonucleotides. We are starting their investigation immediately.
I shall also look forward to having the fourth member of the group, deoxycytidine-3' phosphate.
I have no new results to communicate to you at the present tine. I have, in fact, been working recently on a new theory
With best regards, I am