ACS acknowledges these donors who made contributions on prior years' pledges.

Pamela J. Ayre
Carol A. Bessel
Helen M. Free
John Charles Haas
Charles J. Reeder
Barbara Hodsdon Ullyot
Bayer Foundation
Dow Chemical Company
Dow Corning Foundation
The Camille and Henry Dreyfus Foundation
Lord Corporation
Merck & Co., Inc.