Authors:

Of calling shapes, and beck'ning shadows dire, And airy tongues that syllable men's names.

John Milton (1824). “The Poetical Works of John Milton: With Notes of Various Authors, Principally from the Editions of Thomas Newton, Charles Dunster and Thomas Warton ; to which is Prefixed Newton's Life of Milton”, p.40
Of calling shapes, and beck'ning shadows dire, And airy tongues that syllable men's names.