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Subject
- Aboriginal Australians.1
- Artillery.2
- Artillerymen.1
- Battleships.1
- Biplanes.1
- Bombers.1
- Bombing, Aerial.1
- Bombs.1
- Criminal justice, Administration of.1
- Explosions.1
- Fencers.1
- Fencing--Training.1
- Indigenous peoples.1
- Intrenchments.1
- Machine guns.2
- Machinery.1
- Manchuria (China)1
- Manufacturing processes.2
- Metal-working machinery.1
- Military art and science.2