72 samples were analyzed by the following methods and digestions by an unknown commerical laboratory in Denver, Colorado: for gold using Atomic Absorption Spectroscopy after fire assay; for silver, copper, lead, zinc and cobalt using Atomic Absorption Spectroscopy after HNO3-HCl hot extraction. The publication cited for the methods states that 70 samples were analyzed by the USBM Reno Research Center for barium using X-ray in the data tables and X-ray Diffraction in the description. We believe that barium was analyzed by standard X-ray Fluorescence methods.