τὸν δὲ ταύρῳ χαλκέῳ καυτῆρα: κ. takes the dative of instrument by virtue of its transparently verbal nature.
νόον: Acc. of specification to νηλέα. The prose laws of position are not to be pressed. τὸν δέ may well be “the other,” and the rest in apposition.
ταύρῳ χαλκέῳ: A survival or revival of Moloch worship.