radiation gradiant

aegista inrinensis arsenical rodenticide check of test equipment circummeridian zenith distance Davenport's staining differential-decay method factionless hammer-blow Höpfingen island mole labyrinth tooth magnesium pyroarsenite multidimensional gauging unit natural pack method plateau tropical north-fringe mountainous region point of mixing prelicensing probable error of coefficient of correlation tech-savvy war story