William Strong, United States v. McLean — Opinion of the Court
“ From a review of these statutory provisions it appears plainly that, after a salary of a postmaster has been fixed, a readjustment by the Postmaster-General must be made before it can be increased, and the readjustment takes effect in all cases prospectively. The law imposes no obligation upon the government to pay an increased salary, unless a readjustment has preceded it. And by the act of 1866, the Postmaster-General is not to readjust an existing salary, unless the quarterly returns made show cause for it. ”
