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The Joshua Lederberg Papers

Title:
Letter from Francis J. Ryan to Joshua Lederberg pdf (144,613 Bytes) transcript of pdf
Letter from Francis J. Ryan to Joshua Lederberg
Description:
Item is handwritten.
Number of Image Pages:
2 (144,613 Bytes)
Date:
1946-04-04 (April 4, 1946)
Creator:
Ryan, Francis J.
Recipient:
Lederberg, Joshua
Rights:
Reproduced with permission of Elizabeth J. Ryan.
Relation:
Lederberg Grouping: Correspondence A
Box Number: 6
Folder Number: 53
Unique Identifier:
BBGCOF
Accession Number:
82
Document Type:
Letters (correspondence)
Language:
English
Format:
application/pdf
image/tif
Physical Condition:
Good
Series: Correspondence, 1935-2002
SubSeries: 1925-1947
Folder: Ryan, Francis J.
Transcript:
4/4/46
Dear Josh,
Re reprints -- I think I ordered 400 so there should be plenty. Lets [sic] coordinate on sending them out to avoid duplication. I probably wont [sic] send anything out, except upon request, until next winter.
Don't you have a tube growth reprint? If not I'll let you have the one you sent me. But of course you must have lifted it from somewhere else. 1. it is not perforate 2. the tube growth paper was never missing from my working collection of reprints.
With the 33757 plus and 33757 minus terminology -- both Marcus and the Schraders
[END PAGE ONE]
[BEGIN PAGE TWO]
volunteered opinions that it was clumsy for the reader. So I changed
1. the name of the locus from 33757 to L for leuicine [sic].
2. the alleles from plus and minus to L and l1.
When another locus involved in leucine synthesis is named it can be L' or L". The deficient allele in strain 33757 is called l1, a multiple allelic series would be l1, l2, l3 ---. I think you will agree this is simpler than constrasting [sic] alleles with different numbers, etc. Lysine will have to be Ly etc. If Regnery named the gene at all it was called leucineless. Highly unsatisfactory.
Regards
Francis.
Are you sure you have not got a strain of Actinomyces?
Just what did Tatum do with Zn?
Haven't done the recovery expt. yet.
Metadata Last Modified Date:
2007-01-17
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