The letter is from J. Edward Roush to James R. Jones, thanking him for his support and cooperation in expanding the Indiana Dunes National Lakeshore. Roush explains the importance of adding certain areas to the National Lakeshore for preservation and recreation. He provides details on the areas to be added and requests prompt consideration of the legislation. The enclosed brochure describes the areas and their significance. Roush emphasizes the urgent need to protect the dunes from industrial development and pollution.