Subject
- Engineering4
- Strength of materials2
- Automobiles -- Fuel consumption -- Economic aspects1
- Automobiles -- Motors -- Exhaust gas -- Analysis1
- Carburetors1
- Combustion1
- Concrete -- Additives1
- Current transformers (Instrument transformer)1
- Heat of combustion1
- Mechanical drawing1
- Mortar -- Additives1
- Pumice1
- Pyrometers and pyrometry1
- Shale1
- Slide-rule1