27 March 1953
Dear Dr. Watson and Mr. Crick:
I am very glad to have your letter of 21 March, and to see the letter that you are sending off to NATURE.
I think that it is fine that there are now two proposed structures for nucleic acid, and I am looking forward to finding out what the decision will be as to which is incorrect. Without doubt the King's-College data will eliminate one or the other.
We have taken care of the trouble of too small van der Waals contacts in our structure by rotating the phosphate groups. I do not think that the matter of repulsion between the charged phosphates is an important one. I am not saying, however, that I feel strongly that our structure is right, rather than yours.
With best regards, I am
Sincerely your,