From: Tobias Jonch Date: 2005-12-24T00:44:10+09:00 Subject: Re: Displaying object variables, not obj ID ------=_Part_12620_29870508.1135352639413 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline > So you need to give Chromosome instances their own to_s. > > James > > Aha. I guess it didn't matter after all. Thanks James, for your lucid explanation. ------=_Part_12620_29870508.1135352639413--