TOTAL RETURNS 3/31/97 ANNUALIZED TOTAL RETURN PERCENTAGES WITHOUT THE SALES LOAD: Inception 1 year 3 year 5 year 10 year Since Date Inception FEDERATED 2/69 17.40% 20.13% 16.02% 12.02% 10.78% AMERICAN LEADERS FUND Total return shown is for the Class A Shares and does not reflect the maximum 5.5% sales charge. The total returns including maximum sales charges for one, three, five, ten years and since inception would have been: 10.95%, 17.88%, 14.71%, 11.39% and 10.56% respectively. Inception 1 year 3 year 5 year 10 year Since Date inception FEDERATED BOND 6/95 6.54% na na na 6.83% FUND -- A FEDERATED BOND 5/87 6.51% 7.92% 8.96% na 9.57% FUND --F Although the William Penn Quality Income Fund is expected to be merged into Class A Shares of Federated Bond Fund, performance is also shown for the Class F Shares to demonstrate the long term performance of the portfolio. Performance of the Class F Shares differs from that of the Class A Shares due to differences in charges and expenses. The above performance does not reflect the Class A Shares' maximum 4.5% sales charge or the Class F Shares' maximum 1% sales charge or 1% contingent deferred sales charge applicable to shares redeemed within four years of purchase. The total returns including maximum sales charges for one, three, five, ten years and since inception would have been: Federated Bond Fund -A: 1.77%, na, na, na and 4.09% respectively; and Federated Bond Fund - F: 4.30%, 7.17%, 8.75%, na and 9.46% respectively. Expenses for Federated Bond Fund were 1.05% for A and 1.08% for F as of 3/31/97. Inception 1 year 3 year 5 year 10 year Since Date inception FEDERATED FUND 10/69 4.88% 6.06% 5.29% 7.31% 7.67% FOR US GOVERNMENT SECURITIES Total return shown is for the Class A Shares and does not reflect the maximum 4.5% sales charge. The total returns including maximum sales charges for one, three, five, ten years and since inception would have been: .12%, 4.46%, 4.33%, 6.82% and 7.49% respectively. Inception 1 year 3 year 5 year 10 year Since Date inception FEDERATED 8/84 (0.75)% 3.04% 6.29% 5.28% 12.59% INTERNATIONAL EQUITY FUND Total return shown is for the Class A Shares and does not reflect the maximum 5.5% sales charge. The total returns including maximum sales charges for one, three, five, ten years and since inception would have been: (6.22)%, 1.12%, 5.10%, 4.68% and 12.08% respectively. Inception 1 year 3 year 5 year 10 year Since Date inception FEDERATED 10/90 6.20% 7.39% 7.25% na 8.01% PENNSYLVANIA MUNI INCOME FUND Total return shown is for the Class A Shares and does not reflect the maximum 4.5% sales charge. The total returns including maximum sales charges for one, three, five, ten years and since inception would have been: 1.46%, 5.77%, 6.26%, na and 7.25%. Inception 1 year 3 year 5 year 10 year Since Date inception FEDERATED NEW 12/92 6.10% 6.59% na na 6.38% YORK MUNI INCOME FUND Total return shown is for the Class F Shares and does not reflect the maximum sales charge. The maximum sales charge for Federated New York Municipal Income Fund is 1.00%. The total returns including maximum sales charges for one, three, five, ten years and since inception would have been: 4.05%, 5.89%, na, na and 6.14% respectively. Federated New York Municipal Income Fund also imposes a contingent deferred sales charge of 1% on shares redeemed within four years of purchase. Past performance does not guarantee future results. Investment return and principal value will fluctuate, so when shares are redeemed, they may be worth more or less than their original cost. 015708 (4/97) MUNICIPAL SECURITIES INCOME TRUST Federated Investors Federated Investors Tower Pittsburgh, Pennsylvania 15222-3779 (412) 288-1900 April 10, 1997 EDGAR Operations Branch Securities and Exchange Commission Division of Investment Management 450 Fifth Street, N.W. Washington, DC 20549 RE: Municipal Securities Income Trust (the ``Trust'') 1933 Act File No. 333-23801 1940 Act File No. 811-6165 Dear Sir or Madam: Pursuant to Regulation 14a-6 of the Securities Exchange Act of 1934 (the `1934 Act''), enclosed for filing electronically are additional proxy solicitation materials for the above-referenced Trust. The enclosed information is expected to be mailed to shareholders of Pennsylvania Tax-Free Income Portfolio, a portfolio of William Penn Interest Income Fund, on or about April 25, 1997 in connection with the Special Meeting of Shareholders to be held on May 29, 1997. The material is intended to supplement the definitive Prospectus/Proxy, Statement of Additional Information, and form of proxy of Federated Pennsylvania Municipal Income Fund, a portfolio of the above-referenced Trust, filed with the Commission on March 24, 1997. Please note that the enclosed information contains performance information regarding the Fund as of March 31, 1997, and will be used in lieu of the performance information as of December 31, 1996 that was filed with the Commission in the form of additional proxy materials pursuant to Regulation 14a- 6 of the 1934 Act on April 8, 1997. Any questions or comments with respect to this filing may be directed to the undersigned at (412) 288-4827. Very truly yours, /s/ Jody L. Petras Jody L. Petras Senior Compliance Analyst cc: Byron Bowman Matthew Hardin Enclosures