| [19] | Aeronautics |
| [58] | Agriculture, Farming and Forestry |
| [55] | Arts and Crafts |
| [55] | Business and Management |
| [27] | Civil Engineering, Building Construction, etc. |
| [33] | Electrical Engineering |
| [7] | Electro-Chemistry |
| [13] | Fuel and its Combustion |
| [21] | Hydraulics and Turbines |
| [10] | Internal Combustion Engines |
| [17] | Iron, Steel, and other Metals |
| [31] | Irrigation and Water Supply |
| [61] | Law, Patents, etc. |
| [39] | Lighting |
| [15] | Machinery, Power Plants, etc. |
| [51] | Manufacture and Industries |
| [20] | Marine Engineering |
| [50] | Mathematics |
| [49] | Metallurgy |
| [23] | Mining |
| [61] | Miscellaneous |
| [19] | Motor-Cars and Engines |
| [30] | Municipal Engineering |
| [57] | Natural History, Botany, Nature Study, etc. |
| [8] | Outlines of Industrial Chemistry |
| [40] | Physics and Chemistry |
| [17] | Pumps |
| [24] | Railway Engineering |
| [26] | Reinforced Concrete and Cement |
| [12] | Steam Engines, Boilers, etc. |
| [29] | Surveying |
| [32] | Telegraphy and Telephony |
| [39] | Thermodynamics |
| [56] | Useful Handbooks and Tables |