Edward Douglass White, Capital City Dairy Company v. Ohio…
“ Do the provisions of the Ohio statutes, which, although allowing the manufacture and sale of oleomargarine when free from any coloring matter or other ingredient causing it to look like or to appear to be butter as defined in the statute, and which, moreover, expressly forbid the manufacture or sale within the state of any oleomargarine which contains and methyl, orange, butter yellow, annotto, aniline dye, or any other coloring matter, contravene the Constitution of the United States? ”
