(b)  on or immediately prior to each of the semiannual
              interest payment dates on the Series D (Second
              Series) Bonds maturing on and after May 1, 1997, the
              Series E Bonds maturing on and after May 1, 1997,
              and the Series G Bonds maturing on and after May 1,
              2000 (May 1 and November 1), commencing November 1,
              1993, the necessary amounts of investments in the
              Escrow Account shall be converted to cash by the
              Trustee Escrow Agent for the benefit of the owners
              of such Series D (Second Series) Bonds, such Series
              E Bonds and such Series G Bonds and transferred to
              the Trustee for payment of the interest due on the
              $6,695,000 of Series D (Second Series) Bonds matur-
              ing on and after May 1, 1997, the $1,930,000 of
              Series E Bonds maturing on and after May 1, 1997 and
              the $17,455,000 of Series G Bonds maturing on and
              after May 1, 2000; and

         (c)  on or immediately prior to May 1, 1996, a sufficient
              amount of investments in the Escrow Account shall be
              converted to cash by the Trustee Escrow Agent for
              the benefit of the owners of the (i) Series D
              (Second Series) Bonds scheduled to mature on and
              after May 1, 1997, and transferred to the Trustee
              and applied to redeem on May 1, 1996, the $6,695,000
              of the Series D (Second Series) Bonds scheduled to
              mature on and after May 1, 1997, at a redemption
              price of $6,895,850 (the redemption price being 103%
              of the principal amount of the Series D [Second
              Series] Bonds to be redeemed), plus accrued interest
              to date of redemption, which Series D (Second
              Series) Bonds will have been called for redemption
              on such date; (ii) Series E Bonds scheduled to
              mature on and after May 1, 1997, and transferred to
              the Trustee and applied to redeem on May 1, 1996,
              the $1,930,000 of the Series E Bonds scheduled to
              mature on and after May 1, 1997, at a redemption
              price of $1,968,600 (the redemption price being 102%
              of the principal amount of the Series E Bonds to be
              redeemed), plus accrued interest to date of redemp-
              tion, which Series E Bonds will have been called for
              redemption on such date; and (iii) Series G Bonds
              scheduled to mature on and after May 1, 2000, and
              transferred to the Trustee and applied to redeem on
              May 1, 1999, the $17,455,000 of the Series G Bonds
              scheduled to mature on and after May 1, 2000, at a
              redemption price of $17,804,100 (the redemption
              price being 102% of the principal amount of the
              Series G Bonds to be redeemed), plus accrued inter-
              est to date of redemption, which Series G Bonds will
              have been called for redemption on such date.

          5.   The Escrow Account is irrevocable and the owners of
the Series D (Second Series) Bonds scheduled to mature on and after



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