1 Exhibit 24 POWER OF ATTORNEY The undersigned hereby appoints KATHLEEN A. BROWNE, LARRY ELLBERGER and ROBERT B. LAMM as his/her true and lawful attorneys-in-fact for the purpose of signing the Annual Report on Form 10-K of W. R. GRACE & CO. for the year ended December 31, 1997, and all amendments thereto, to be filed with the Securities and Exchange Commission. Each of such attorneys-in-fact is appointed with full power to act without the other. /s/ J. F. Akers /s/ J. W. Frick /s/ H. Brown /s/ T. A. Holmes /s/ C. Cheng /s/ V. A. Kamsky /s/ A. J. Costello /s/ J. J. Murphy /s/ H. A. Eckmann /s/ J. E. Phipps /s/ M. A. Fox /s/ T. A. Vanderslice Dated: March 30, 1998