by John Marshall Harlan, United States v. Johnson (173 U.S. 363…
“ We are of opinion that congress intended by sections 1764 and 1765 to uproot the practice under which, in the absence of any statute expressly authorizing it, extra allowances or special compensation were made to public officers for services which they were required to render in consideration only of the fixed salary and emoluments established for them by law. ”
