found: Wikipedia, Aug. 15, 2012(under Bismuth: Bismuth compounds account for about half the production of bismuth. They are used in cosmetics, pigments, and a few pharmaceuticals, notably Pepto-Bismol.)
found: Collins English dictionary website, Aug. 15, 2012(bismuthous: of or containing bismuth in the trivalent state)
found: Miller, W.L. Introduction to qualitative analysis, 1896, via Google books, viewed Aug. 15, 2012:p. 71 (Bismuthous compounds--BiX₃, colorless in solution)
found: Appleton, J.H. A short course in qualitative chemical analysis, 1878, via Google books, viewed Aug. 15, 2012:index (Bismuthic compounds; Bismuthous compounds)
