Letters from High School Students on Environmental Issues; Correspondence from Federal Credit Unions Regarding Savings & Loan Industry Bailout; H.R. 1231 Support for Investigation into Eastern Airlines; Gun Control, including Opposition to H.R. 669 Proposed by Rep. Howard Berman (D-CA) to Prohibit Transfer and Possession of Automatic Weapons; Opposition to Section 89 of the Tax Reform Act of 1986