“ In the United Kingdom the official style of “city” does not necessarily involve the possession of municipal power greater than those of the ordinary boroughs, nor indeed the possession of a corporation at all (e.g. Ely) . In the United States and the British colonies, on the other hand, the official application of the term “city” depends on the kind and extent of the municipal privileges possessed by the corporations, and charters are given raising towns to the rank of cities. ”