Joseph McKenna, Moxley v. Hertz — Opinion of the Court
“ But the contention contravenes the rule in the Cliff Case, where the distinction was made between the mere addition of an authorized food ingredient and its service in the compound for something more substantial than coloration. We now repeat it. Any other rule would give too easy a way to evade the statute, and make its purpose yield not to what is essential to the manufacture of oleomargarine, but what is nonessential; and render a law which was intended to prevent deception an easy means to accomplish it. ”
