Oliver Wendell Holmes, Jr., Guardian Savings Trust Company v…
“ But while that may be true as a general doctrine, it cannot apply when a state has authorized and confirmed an assessment and a mortgage of it as security for bonds that the public is invited to buy, and has provided in terms for a collection by a receiver appointed in equity if there should be a default. There is no longer any legislative act to be done, and there is no usurpation of powers in following the course provided by state law. ”
