In the national banking system of the United States, any of certain cities in which the national banks are required (U. S. Rev. Stat. sec. 5191
) to keep a larger reserve (25 per cent) than the minimum (15 per cent) required of all other banks. The banks in certain of the reserve cities (specifically called central reserve cities
) are required to keep their reserve on hand in cash; banks in other reserve cities may keep half of their reserve as deposits in these banks (U. S. Rev. Stat. sec. 5195
). [Webster 1913 Suppl.