FRANK J. AYD, JR., M. D.

      912 WEST LAKE AVENUE

  BALTIMORE, MARYLAND 2 I2 10

November 3, 1967

Dr. Marshall Neurenburg
National Institute of Health
8600 Wisconsin Avenue
Bethesda, Maryland   20014

Dear Doctor Neurenburg:

   I am planning to write an article on "When Does Human Life
Begin?"  in which I would include the views of world renowned
authorities on this subject.  As you well know, there are physi-
cians who hold that human life begins at the moment of conception
and others who say human life does not begin until implantation.
What would be your answer to this?  I would be indebted to you,
if you would send me your answer with the reasons for it, along
with permission to include it as part of my article.  Your reply
could be as long as you wish to make it.

   I solicit your cooperation because I am convinced that doc-
tors would be interested in what you think is the proper answer
to this timely question.

   It is my desire to make this article as authoritative as
possible.  Enclosed is a partial list of those to whom copies of
this letter is being sent.  Since you undoubtedly know other
authorities in this field, I appeal to your generosity by asking
you to send me the names and addresses of others whose opinion I
should solicit.  I am particularly anxious to obtain the names
of authorities outside the United States.

   I truly would appreciate your suggestions and your answer
to the question,  "When Does Human Life Begin?".

   Hoping that some day I will have the privilege of meeting
you, I am

FJA:ldf

Encl.