The City of New York is governed by a Mayor, a Board of Aldermen and a Board of Common Councilmen. The Mayor has been stripped by the Legislature of the State of almost every power or attribute of power, and is to-day merely an ornamental figure-head to the City government. The real power lies in the Boards named above, and in the various "Commissioners" appointed by the Legislature. These are the Commissioners in charge of the streets, the Croton Aqueduct, Public Charities and Corrections, the Police and Fire Departments.