of Melbourne

ww VICTORIA, AUSTRALIA

Aniversity

CARLTON, N.3,

 

BH.CM Bacteriology Department
7th June, 1957.

Professor J. Lederberg,
Department of Genetics,
University of Wisconsin,
Madigon 6,

Wisconsin, U.S.A.

Dear Professor Lederberg,

I am starting to look into the details of the practical
course in bacterial genetics which will be given here in the Third
Term. Miss James, who has run this course in previous years, tells
me that in her experience the various mutant strains of K-12 used
in the course are not behaving as expected. I think that rather
than spend time going into reasons as to why the various markers
are not behaving satisfactorily, it may be better if you could
sentl out new subcultures of your own strains which you know to
be satisfactory. Below is a list of the strains used in this
course and the markers.

 

B) Lac. Gal. Mal. Xyl. Strep. TY T)

 

Strain F M ff OL T3
A 58141 + =e + + + + + + + s S S R
B 58-141 - -— + + + + + + + S S S R
CG Y.j10 - + =~ = + + + + S Ss s Ss
D wWw.677 ~ + «= @ - 2 - - ~ R R S s

 

It 1s possible, of course, that you may no longer have some of these
strains, in which case you will know best which ones to substitute.

I am looking forward to meeting you and your wife and I
hope that your stay here will be both pleasant ami profitable.

With kind regards,
Yours sincerely,

Mlrtus gin whl Coby yn,

ag oe ”. ey
CF , TOE he ts Chae
mh Phe the » aL ts, Cle
cmd ob ot Hs | Neg 5 are. 7
‘ hb nw te TS “SAA ok,

Jiuttic ofr 9 doe“