- Statistics (HA) 4
- Economic theory. Demography (HB) 101
- Economic history and conditions (HC) 53
- Industries, Land use, Labor (HD) 215
- Transportation and communications (HE) 181
- Commerce (including tariff) (HF) 101
- Finance (HG) 83
- Public Finance (HJ) 14
- Sociology (General) (HM) 58
- Social history and conditions, Social problems, Social reform (HN) 70
- Family, Marriage, Women (HQ) 476
- Societies (HS) 38
- Communities, Classes, Races (HT) 69
- Social Pathology, Social and public welfare, Criminology (HV) 429
- Socialism. Communism. Anarchism (HX) 165
