
    No. 75-142.
    Mathews, Secretary of Health, Education, and Welfare v. Cintron.
   Appeal from D. C. P. R. Judgment vacated and case remanded for consideration of question of mootness; if the cause is not moot, for reconsideration of determination of class action in light of Weinberger v. Salfi, 422 U. S. 749 (1975).  