trying to find Adlemann or Lipton's molecular computer articles

[MikeRoam]

I've been hunting all over the internet, newsgroups, and www trying to
find
Leonard Adleman's article "On Constructing a Molecular Computer" and
Richard Lipton's article "Speeding Up Computations Via Molecular Biology"
which I hear have been circulating. Can anyone send me copies or pointers?
Thanks!
Mike Roam
NYU grad student in comp.sci., studying algorithms for genetic sequencing