Subject
- Competition.2
- Crowds.2
- Curiosities and wonders.2
- Dogsledding.2
- Fire extinction.2
- Football players.2
- Golf--Tournaments.2
- Horse shows.2
- Human-animal relationships.2
- Jockeys.2
- Motorboat racing.2
- Motorboats.2
- Mushers.2
- Ocean waves--Atlantic Ocean.2
- Pennsylvania State University.2
- Referees.2
- Rowing.2
- Ships.2
- Smoke.2
- Snow.2