37 samples were analyzed for tungsten using Colorimetric methods after carbonate sintering and for arsenic using Colorimetric methods after nitric perchloric acid digestion. 1 sample was analyzed for mercury using Cold Vapor Atomic Absorption after HCl:HNO3 (3:1) acid digestion. 2 samples were analyzed for tin using X-ray Fluorescence. The results published in AOF164 and 165 have numerous mistakes. The results listed here have been corrected using the original geochemical reports.