Printing Trees

[POSTMAST at gunbrf.bitnet]

Anyone who would be interested in a set of macros that can be used to produce
labeled trees in TeX or LaTeX documents may contact me at the address below.
The macros are fairly simple and do not provide for branch length specification.
The format looks like this:
\tree{}
  \subtree{}
    \leaf{A}
    \leaf{B}
  \endsubtree
  \subtree{}
    \leaf{C}
  \endsubtree
\endtree
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                                 Dr. John S. Garavelli
                                 Database Coordinator
                                 Protein Identification Resource
                                 National Biomedical Research Foundation
                                 Washington, DC  20007
                                 POSTMASTER at GUNBRF.BITNET