Attached is a copy of an appendix on metaclasses and some of their 
uses from my earlier-mentioned text. Not perfect yet but a contribution 
to the discussion :-)

Ivan

P.S. I will send all files to those who asked for it tomorrow.
Ivan Tomek,
Jodrey School of Computer Science
Acadia University
Nova Scotia, Canada

fax: (902) 585-1067
voice: (902) 585-1467
e-mail: ivan.tomek at acadiau.ca