No delay or omission to exercise any right, power, or remedy accruing to a party upon any breach or default of another party under this Agreement shall impair any such right, power, or remedy of such party, nor shall it be construed to be a waiver of any such breach or default, or an acquiescence therein, or of or in any similar breach or default thereafter occurring; nor shall any waiver of any single breach or default be deemed a waiver of any other breach or default theretofore or thereafter occurring.  No waiver of any term, provision or condition of this Agreement, whether by conduct or otherwise, in any one or more instances, shall be deemed to be, or be construed as, a further or continuing waiver of any such term, provision or condition or as a waiver of any other term, provision or condition of this Agreement.  Any agreement on the part of a party or parties hereto to any waiver shall be valid only if set forth in an instrument in writing signed on behalf of such party or parties, as applicable.  Any delay in exercising any right under this Agreement shall not constitute a waiver of such right.