May 12, 1967

Academician A. I. Oparin
Rakh Institute of Eiochemistry
Academy of Sciences of the U.S.S.R.
Leninsky prospekt 33
Moscow Z-71, U.S.S.R.

Dear Colleague:

  I am happy to participate in the publication of a memorial
volume in memory of my friend Academician N. M. Sissakian.

  I have written the enclosed paper for this purrpose.   It is
entitled Ortk:amolecular Methods in Medicine.  I think that it is
appropriate to the volume.

  I apologize for the delay in answering your letter, which
arrived while,1 was awey from home for two months, on a trip
to India and other countries.

Witl: best regards, I am

Sincerely yours,

Encl.

LP:fkg

Linus Iauling