Dec. 18
Dear Joshua:
We had just about finished arranging for your visit on the 8th when your last letter arrived.  I had excluded the other alternative because I'm leaving on the 12th to give a lecture in Boston on the 13th.  As you might gather the Boston visit is a warm-up for a Harvey Lecture in N.Y. to be followed by a PAS study section meeting in Washington that following weekend.  The only moral I can derive from our recent Sputnick [sic]-like behavior is that it can't possibly accomodate [sic] any laboratory work or sustained effort of any kind.  If you've solved that problem, I'll be more optimistic about the world's problems which have made me a first class crepe[?] hanger[?] since I got home.
However we do want you to come here and I'm selfish enough to want to be here when you do.  Let's make it some time in May.  You set the dates and let us know.  It will be fun socially and I'm confident will be useful scientifically with our interests coming so close.  We continue to be pleasantly surprised by the ability of the enzyme system to make DNA that is so much like the native stuff.
As ever
Arthur