in ornithology. See Motacilla.
in chemistry, an imperfect metallic substance, that falls to the bottom of the crucible, in the melting of ores or impure metallic substances. See Chemistry, paffion.
in ornithology. See Motacilla.
in chemistry, an imperfect metallic substance, that falls to the bottom of the crucible, in the melting of ores or impure metallic substances. See Chemistry, paffion.