CORRESPONDENCE.

Presents several letters to the editor. Correction made to an article paying tribute to U.S. philosopher and educator John Dewey; Reports on the United Nations Scientific Conference on the Conservation and Utilization of Resources at Lake Success in California; Argument against the social programs of the American Committee on the World Power Conference, an agency of the electric-utility industry; Discussion on problems of group prejudices, state politics and public health related to Indians; Comments by author Oliver La Farge on the elimination of the Indian Bureau.