a —_

October 17, 1953

Dear Werner:

Dr. Aleck Bernstein (an English bactericologist who recently joined our group)
has been following up Sertic' old observation (apparently quite correct) that
acriflavine will agglutinate flagellated Salmonellas of phase 2 but not phase l.
This mist bespeak a fundamental chemical difference in the flagella which we
hope to be able to investigate. Ye have been trying to find previous work on
the basis of acriflavine agglutination, or of dye-agglutinatdon of bacteria
generally, but can find gery little on this subject. I am whkiing to you in
the hope you may have accumlated a bibliography and would be willing to give
us the advantage of it,

ve have been using your book in our course this year, and the students seen
to like it very mich. The only reason I did not make it an obligatory assign-
ment is, as you may guess, its unreasonable price. I realize this is largely
out of your hands, but I know of no other channel through which to register
such a comment. I cannot help feeling the production cost was made unduly high
by such features as gloasy paper throughout.

A few typos have been noticed. F. Kauffmann's name is misspelled throughout
(e.g. p.116? I think there were some other equally minor ones, but I can't recall
them offhand. Og yes, Piekarski (p.39). I am sorry you quoted MGB as a publication,
as itis notiticcessible to the public (but not everyone agrees with me). And
Browning (p. 186) did not work with bacteria. Of course I only mention these things
as basis for corrections in further eddtions if any: as a whole, it locks quite

clean.

Sincerely,

Jostma edarhere i