An Aztec narcotic (Lophophora williamsii) An Aztec narcotic (Lophophora williamsii)v. 6No. 7291–311Safford, William Edwin. 1915. "An Aztec narcotic (Lophophora williamsii)." The Journal of Heredity, 6, (7) 291–311.More...ID: 132904Type: articleKeywords: USNM; NMNH