The Chicago municipal code of 1922 [electronic resource] : containing the general ordinances of the city in force November 22, 1922, and repealing former general ordinances with certain exceptions, passed November 22, 1922 / pub. by authority of the City Council in book form December 21, 1922 ; revised and codified by Samuel A. Ettelson ... assisted by Leon Hornstein, Frank W. Derby and Ruth C. Nelson