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Dr.W. Hayes

rostgraduate Medical School
Ducane Rd.

London W.12

Dear liayes,
The Lederbergs and I have agreed to write join-
tly ubout our observations on the transmission of F+, the fertia
lity factor, and since some of our observations, at least those
on genetic infection,are so close te yours, we thought that it
aight be reasonable to publish such a paper on the Journal of
Generul iderobiology , possibly in the same issue in which your
paper on the same subject will appear - I hope 7 understood cor
reetly when you said you would send a pauper to this Journal. I
au myself a member of the Society of General 'Meroblology, and
I hope we shall have tne paper accepted. If you think tis suits
you,we may perhaps send both a word to the editors about it, I
expect our pauper may be ready by the end of this month.
a8 you know,both Lederberg and I cannot agree to

the idea of a “self-reproducing gamete" ,which seens to obscure
rather than to enlighten the picture,and it may be worth expres=
siga our views on this in the paper, T am telling you this,also
dn agrrement with Lederberg, because you mieht like to take tnis
opportunity to clarify your own views on the matter on the JGN
paper, I have tried to express to you my ideas in London, but the
time hus been unfortunately short, and the discussion took place
mostly aftcr a good meal . However, should you like to have fur
ther exchange of ideas and comments on the subject, I should be
quite glid of doting this by mail.

I have not yet tried the sample of DNA-ase which
you «indly sent me,but nope to do so next week,

with best regards to lirs. Hayes,
Yours sincerely

c/ to Lede ‘*rg.