24/3/52

Dear Hayes,

I am sorry both for having been unable to come and see
you in your lab., and for not having thanked you before now for
the very nice evening we spent together at London. |
. Meanwhile your letter of March 18th has reached me,as
well as the sample of DNA~ase ,which will certainly be enough for
some experiments. I am writing to Dr White separately. I shall
let you know of the results. .

You will also hear shortly of the 'talian meeting. With
kingest regards to Mrs. Hayes and yourself,

Yours sincerely