1 EXHIBIT 4-A AMENDMENT NO. 2 TO THE AMENDED AND RESTATED TRUST AGREEMENT This AMENDMENT NO. 2 (the "AMENDMENT") is made as of October 25, 1999, by Israel J. Floyd, Stuart C. Shears and Michael J. Scott (collectively, the "ADMINISTRATIVE TRUSTEES"),...Trust Agreement • November 15th, 1999 • Hercules Inc • Miscellaneous chemical products • Delaware
1 EXHIBIT 4-B THIRD SUPPLEMENTAL INDENTUREThird Supplemental Indenture • November 15th, 1999 • Hercules Inc • Miscellaneous chemical products • New York
