Exhibit 4(a) August 2, 1996 Securities and Exchange Commission 450 5th Street NW Washington, DC 20549 Ladies/Gentlemen: The company agrees to furnish the Commission upon request copies of the following long-term debt instruments: 1. Credit Agreement between Equitable of Iowa Companies and Morgan Guaranty Trust Company of New York, as Agent, and the Bank of New York, as Administrative Agent, and participating banks, dated May 10, 1996, re: line of credit in amount of $300,000,000. 2. Note Purchase Agreement dated August 19, 1986, between Walnut Mall Limited Partnership ("Issuer") and Teacher Retirement System of Texas ("Purchaser") in the remaining principal amount of $25,285,005 due through August 19, 1996. Very truly yours, /s/ John A. Merriman John A. Merriman General Counsel/Secretary Equitable of Iowa Companies