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The Joshua Lederberg Papers

Title:
Letter from P. R. Edwards to Joshua Lederberg pdf (64,149 Bytes) transcript of pdf
Letter from P. R. Edwards to Joshua Lederberg
Number of Image Pages:
1 (64,149 Bytes)
Date:
1956-01-10 (January 10, 1956)
Creator:
Edwards, P. R.
Recipient:
Lederberg, Joshua
Rights:
This item is in the public domain. It may be used without permission.
Relation:
Lederberg Grouping: Correspondence C
Box Number: 10
Folder Number: 25
Unique Identifier:
BBAIEF
Accession Number:
13
Document Type:
Letters (correspondence)
Language:
English
Format:
application/pdf
image/tif
Physical Condition:
Good
Series: Correspondence, 1935-2002
SubSeries: 1953-1960
Folder: Edwards, P. R.
Transcript:
January 10, 1956
Dear Dr. Lederberg:
We introduced motility into six nonmotile cultures on the first effort with PLT22 + S. dublin. The H antigens were b-1,2 in each instance, as they should have been. Two additional nonmotile cultures were done later with negative results. These were repeated today with a stronger phage (SW435 + S. dublin, i.e. just growing the cultures together on a shaker for 48 hours) [HANDWRITTEN: Positive motility H not yet examined]. In the tubes which did not become motile there were pronounced "tracks."
Bill had a long letter from Orskov today and he is most enthusiastic about the prospects of working with you. Also he seemed quite sanguine about the chances of everything working out.
We will be glad to send the sucrose fermenters and the r, i forms. The latter are not my personal bugs, but came from Taylor and Kauffman and as yet are not published.
Many thanks for your remarks about linked transductions and phase variability. I can appreciate your remarks about lack of a yardstick for phase variation. From Stocker's experience, it entails a lot of work to measure this property.
With kind regards, I am
For the Officer-in-Charge, Bacteriology Section
Sincerely yours,
Philip R. Edwards, Ph. D.
Bacteriologist-in-Charge
Enteric Bacteriology Unit
Metadata Last Modified Date:
2009-06-25
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