The contents of this page and associated hyper-links are Copyright &copy 1995 by Thomas Weldon, all rights reserved.  Persons may make individual copies of this material for their personal use and may include hyper-links to this page.  Individuals may take a single copy of the thesis for their own personal use provided that they e-mail the author when they download the thesis, and provided that they do not make additional copies by any means with the exception of one single printed copy.  Further, any copy of the thesis must not be made available by electronic or other means without the express written permission of the author.