October 5, 1953

Dr. ©. S. Lindstrom

Department of BacterLology
Pennsylvania State College
State College, Pennsylvania

  
   
      
  
  
    
 
 
   
  
 
  
 

Dear Gehe:

I have your letter of September a, and am
under separate cover.

May Inalso intrude a caveat, whic
what hesitant to bring up except thé you 7
it, and will keep it strictly persofal. work with which lis, Berry was
connected at Amherst (and for whigh she is presumably responsible to the extent
of authppship on the papers) has duffered from/grave aechnical mishaps— reflected
for example in the mixed cutt gh Linally"explained" (rather reluc—
tantly, but under the dtrongss satre_frof Other workers)in P.NeAS. 37:640/
and also in the inconsistencie» aper in P.N.A.S. 38:797; compare with
Microb. Genetics Bull. Febr. 3 p.17, and also his private statement that

p uctdons cannot be "consistently" obtained
P do not mean to imply that anything more
is required than a caref? techdhque. I suspect that many of the incon—
sistencies may stem from \the sverae auxanographic" method of testang nutritional
requirementa.\Mutagenic effedts-are some of the most difficult to evaluate, and
more than usual\attention has to be paid to experimental design and its execution
in this field.

and many no longer react As

Sincerely, . -

Joshua Lederberg