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The Joshua Lederberg Papers

Title:
Letter from Francois Jacob to Joshua Lederberg pdf (142,309 Bytes) transcript of pdf
Letter from Francois Jacob to Joshua Lederberg
Description:
Item is handwritten.
Number of Image Pages:
2 (142,309 Bytes)
Date:
1958-05-12 (May 12, 1958)
Creator:
Jacob, Francois
Recipient:
Lederberg, Joshua
Rights:
Reproduced with permission of Francois Jacob.
Relation:
Lederberg Grouping: Correspondence C
Box Number: 11
Folder Number: 88
Unique Identifier:
BBAJTM
Accession Number:
16
Document Type:
Letters (correspondence)
Language:
English
Format:
application/pdf
image/tif
Physical Condition:
Good
Series: Correspondence, 1935-2002
SubSeries: 1953-1960
Folder: Jacob, Francois
Transcript:
May 12 1958
Dear Josh
Thank you for your letter. I am very glad you agree about the Royamont project and am looking forward to seeing you again next summer.
We have not yet any precise opinions about the F factor since this does not seem apt to be any conclusive evidence its cytoplasmic vs. nuclear nature (at least not yet we know of).
About the questions you ask, I can only answer some of them.
1). To plate [. . .] one has to be very tired[?] with the [. . .] couples. We dilute very slowly, throw gently [. . .] into melted agar tubes and pass these onto agar plates, very carefully.
2) We have no more CSH reprints. I will look carefully whether some have been hidden somewhere and send them if I can find some.
3) We have some [. . .] for which the first [. . .] enters between 4 and 5 [ . . . ]. This is the earliest time[?] we have.
[END PAGE ONE]
[BEGIN PAGE TWO]
4) We have not yet studied zygotic [. . .] very early.
We have another evidence that in some cases the whole genome[?] is infected: this is based on [. . .] B galactosidase by zygote resulting from [. . .] between H lac+ and F- lac-, in conditions where the [. . .]. If our uses are off strain which injects lac in the first minute, once [. . .] that B-galactosidase [. . .] almost immediately after the [. . .] of the first lac [. . .] in the recipients and the [. . .] where [. . .] lac [. . .] are transferred (all this is independent of 2c [. . .]). When one uses all [. . .] in which lac is ejected last, there is also detectable [. . .] of [. . .] for several hours.
We shall discuss all this next summer. I hope you [. . .] enjoy the Royamont meeting which we shall try to be pleasant, not too tiring, and if possible useful.
Best regards to both of you and to Luca
Yours
Francois
I just realize that the secretary did not possess[?] the paper I had prepared to send with the [. . .] for Richter. Would you tell him that [. . .] is B- and lac-.
Metadata Last Modified Date:
2009-06-25
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