Morrison Waite,
Tompkins v. Little Rock Fort S. Railway Williams…
“ In the present case the tax provided for is not on the property of the company, and it has none of the qualities of tax for revenue. It is in reality nothing but a way of fixing the amount due at a particular time from the company to the state on account of the loan of credit under the statute, and demanding its payment. The object is to collect a debt due, not to require a contribution from the company for the public necessities. The obligation to pay grows out of a private contract between the state and the company, not out of the political relations between a sovereign and his people. ”
