In the paper, "Textural, Compositional, and Sulfur Isotope Variations of Sulfide Minerals in the Red Dog Zn-Pb-Ag Deposits, Brooks Range, Alaska: Implications for Ore Formation," by K.D. Kelley, D.L. Leach, C.A. Johnson, J.L. Clark, M. Fayek, J.F. Slack, V.M. Anderson, R.A. Ayuso, and W.I. Ridley (Vol. 99, issue 7, 2004), the Appendix was missing. It is reproduced below.