For railroads in the United States see HE2704+
For railroads in other regions or countries see HE2801+
| Call Number | Subject |
|---|---|
| D 1-24.5 | General |
| Call Number | Subject |
|---|---|
| HE 1005 | Congresses |
| HE 1021 | History |
| HE 1031 | General works |
| HE 1051-1081 | Government policy For United States see HE2757 For other countries see HE2801+ |
| - HE 1051 | - General works |
| - HE 1059.8-1064 | - State aid. Federal aid |
| - - HE 1061 | - - United States |
| - - HE 1062 | - - Pacific railroads |
| - - HE 1063-1064 | - - Land grants |
| HE 1617-1619 | Grade crossings See also TF263 Railway engineering |
| HE 1621-1776 | Management. Business administration |
| HE 1779-1783 | Accidents |
| - HE 1780-1783 | - By region or country |
| - - HE 1780-1781 | - - United States |
| - - HE 1783.A-Z | - - Other regions or countries, A-Z |
| HE 1821-2591 | Traffic For traffic by region or country see HE2351+ See also HE2301+ Freight, baggage, etc. |
| - HE 1831-2220 | - Rates |
| - - HE 1951-2100 | - - Passenger fares |
| - - HE 2101-2220 | - - Freight rates |
| - HE 2231-2261 | - Finance |
| - HE 2301-2547 | - Freight |
| - HE 2561-2591 | - Passenger traffic |
| HE 2701-3561 | By region or country |
| - HE 2704-2791 | - United States |
| - - HE 2713 | - - Statistics |
| - - HE 2717 | - - Congresses |
| - - HE 2727-2729 | - - Timetables. Guides for travelers |
| - - HE 2741 | - - General works |
| - - HE 2751 | - - History |
| - - HE 2752-2754 | - - Biography |
| - - - HE 2752 | - - - Collective |
| - - - HE 2754.A-Z | - - - Individual, A-Z |
| - - HE 2757 | - - Government policy. Railroads & the state |
| - - HE 2761-2771.A195 | - - By region |
| - - - HE 2761 | - - - Atlantic to Mississippi |
| - - - HE 2763 | - - - Mississippi to Pacific |
| - - - HE 2767 | - - - To Mexico. By name of railroad |
| - - - HE 2771 | - - - Other regions |
| - - - - HE 2771.A11 | - - - - New England |
| - - - - HE 2771.A13 | - - - - Southern States |
| - - - - HE 2771.A14 | - - - - Middle West. North Central States |
| - - - - HE 2771.A19 | - - - - Pacific Northwest |
| - - HE 2771.A2-.W | - - By state, A-W |
| - - - HE 2771.C2 | - - - California |
| - - - HE 2771.F5-.F6 | - - - Florida |
| - - - HE 2771.I8 | - - - Iowa |
| - - - HE 2771.M4 | - - - Massachusetts |
| - - - HE 2771.N7 | - - - New York |
| - - - HE 2771.P4 | - - - Pennsylvania |
| - - HE 2781.A-Z | - - By city, A-Z |
| - - HE 2791.A-Z | - - By railroad company, A-Z |
| - - - HE 2791.A563 | - - - Amtrak |
| - - - HE 2791.A83 | - - - Atchison, Topeka & Santa Fe |
| - - - HE 2791.C45 | - - - Central Pacific |
| - - - HE 2791.C643 | - - - Chicago, Burlington & Quincy |
| - - - HE 2791.C67 | - - - Chicago, Milwaukee, St. Paul & Pacific |
| - - - HE 2791.D44 | - - - Denver & Rio Grande |
| - - - HE 2791.F723 | - - - Florida East Coast |
| - - - HE 2791.G77 | - - - Great Northern |
| - - - HE 2791.I3 | - - - Illinois Central |
| - - - HE 2791.L87 | - - - Louisville & Nashville |
| - - - HE 2791.N85 | - - - Northern Pacific |
| - - - HE 2791.P2 | - - - Pennsylvania Central |
| - - - HE 2791.U55 | - - - Union Pacific |
| - HE 2801-3561 | - Other regions or countries |
| - - HE 2801-2810 | - - Canada |
| - - HE 2810.5-3000 | - - Latin America |
| - - HE 3001-3260 | - - Europe |
| - - - HE 3011-3050 | - - - Great Britain |
| - - - HE 3131-3140 | - - - Russia. Soviet Union. Former Soviet Republics |
| - - HE 3271-3390 | - - Asia |
| - - HE 3391-3460 | - - Africa |
| HE 3601-4043 | Local & light railroads. Narrow gauge railroads. Industrial railroads |
| HE 4201-5251 | Local transit. Street railways. Subways See also HE305+ Urban transportation; HE5601+ Bus lines; TF701+ Engineering |
| - HE 4211 | - General works |
| - HE 4301-4391 | - Management |
| - - HE 4311 | - - Personnel management |
| - - HE 4351 | - - Finance. Accounting. Auditing |
| - HE 4401-5251 | - By region or country |
| - - HE 4401-4491 | - - United States |
| - - - HE 4451 | - - - General works |
| - - - HE 4461 | - - - Government policy Including taxation & valuation |
| - - - HE 4471 | - - - History |
| - - - HE 4491.A-Z | - - - By city, A-Z |
| - - HE 4500-5251 | - - Other regions or countries |
| HE 5351-5600 | Interurban railroads |