May 10, 1966 Dear Francis My return was delayed for over a week due to a persistant [sic] flu which did not disappear. Hence my failure to return via England. I most appreciated your comments on my book, most of which I assume your memory is more correct. On several I am not sure -- (e.g. Odile certainly did the decorations on the other hand, the fact that most of the dancers would be black was certainly an inducement that it might be fun --) In several cases I'm sure I'm right. e.g. Bragg himself told me that he avoided the tea room for fear of hearing your voice. Now I suspect I need about one month of steady work to make the corrections -- much rewriting of the first 9 chapters -- Doing this in Geneva seems silly so I shall probably put off the task until mid summer. We sent a copy of Capyechi's new end group data to Marchev [?] it [END PAGE ONE] [BEGIN PAGE TWO] definitely establishs [sic] that the following NH2 terminal sequences exist f-neth-ala- f-neth-ser very little of any f-neth-neth exists given Keller's end group data. I suspect in time f-neth-tlr will be found. These structures no as hot chance [?] that the beginning sequences may be AUGGC . . . f-neth-ala AUGUC f-neth-ser AUGAC f-neth-tlr Could this be a way to control the rate at which RNA polymerase attachs [sic] to cistron operors [?]? Trust Odile is now completely recovered. See you in CSH Jim