History 20 Real property 17 Description and travel 16 Maps 15 Museums 13 Associations, institutions, etc 11 Societies 11 more ... Directories 7 Economic conditions 7 Local transit 7 Street-railroads 7 Mafia 5 Transportation 5 Streets 4 Buildings 3 Diseases 3 Guidebooks 3 Library resources 3 Regional planning 3 Societies, etc 3 Special libraries 3 Archives 2 Bus lines 2 Business enterprises 2 Cars 2 City planning 2 City traffic 2 Cricket 2 Electric railroads 2 Exhibitions 2 Finance, Public 2 Gardens 2 Historic buildings 2 Industries 2 Library cooperation 2 Organized crime 2 Presbyterian Church 2 Railroads 2 Social conditions 2 Traffic engineering 2 less ...