Portions copyright by Christoph Steinbeck, the JChemPaint project and
others.  The following files contain copyright and license info for
the code they contain: 
boshcp.h sdg.h sorf.h setofrings.h ring.h atom.h

-- XDrawChem copyright begins here --

    XDrawChem
    Copyright (C) 2004 Bryan Herger -- bherger@users.sourceforge.net

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    (Author's note: the license is in the file GPL.txt, which is included
     in the source directory.)