Revision history for Perl extension Chemistry::Bond::Find 0.21 Wed Jun 16 2004 - New options for assign_bond_orders: scratch. 0.20 Tue May 18 2004 - Added assign_bon_orders. 0.10 Wed May 12 2004 - Changed the recursive algorithm for a hash bucket algorithm, which is 2-3 times faster for larger molecules. 0.05 Tue May 11 2004 - First CPAN release