UNIVERSITY OF SOUTH CAROLINA 
COLUMBIA. S. C. 292 08 
DEPARTMENT OF BIOLOGY 
September 22, 1978 
Dr. Donald S. Fredrickson 
Di rector 
NIH 
Dear Dr. Fredrickson: 
I wrote you on August 21 about the Recombinant 
DNA guidelines and enclosed a manuscript about 
gene transfer in Caulobacter crescentus . I have 
just received a letter from Irving Crawford, one 
of the editors of the journal Genetics informing 
me that the manuscript has been found suitable 
for publication. Therefore, the manuscript I 
sent you can be considered "in press". 
I would appreciate your doing all you can to en- 
sure that £. Crescentus is included in the list 
of exempt organisms in section I-E-4 of Appendix 
A of the revised Guidelines when they go into 
effect. 
Sincerely, 
Bert Ely 
Assistant Professor 
BE/mpw 
[A-267] 
The Univarsity o * South Carolina USC Aiken. USC Selkehatchie. Allendale. USC Beaufort; USC Columbia; Coastal 
Carolina College. Conway; USC Lancaster. USC Spartanburg. USC Sumter; USC Union; and the Military Campus. 
