
    No. 99-1403.
    Cement Masons Health and Welfare Trust Fund for Northern California et al. v. Stone.
   C. A. 9th Cir. Motions of International Training Institute for the Sheet Metal and Air Conditioning Industry; Multiemployer Trust Funds; Central States, Southeast and Southwest Areas Health and Welfare Fund; and Health Insurance Association of America for leave to file briefs as amici curiae granted. The Solicitor General is invited to file a brief in this ease expressing the views of the United States.  