If any term of this Third Amendment, or the application thereof to any person or circumstances, shall to any extent be invalid or unenforceable, the remainder of this Third Amendment, or the application of such term to persons or circumstances other than those as to which it is invalid or unenforceable, shall not be affected thereby, and each term of this Third Amendment shall be valid and enforceable to the fullest extent permitted by law.  The titles for the paragraphs are for convenience only and not to be considered in construing this Third Amendment.  This Third Amendment contains all of the agreements of the parties with respect to the subject matter hereof, and supersedes all prior dealings between them with respect to such subject matter.