by John Marshall Harlan, Railroad Company v. Vance — Opinion of the Court
“ The Constitution of Illinois requires the General Assembly of that State to provide such revenue as may be needful by levying a tax by valuation, so that every person and corporation shall pay a tax in proportion to the value of his, her, or its property,-such valuation to be ascertained by some person or persons to be elected or appointed in such manner as the General Assembly shall direct. ”
