Subject - Topics
- Teachers' assistants5
- Theater5
- X-rays5
- Antisemitism4
- Charts, diagrams, etc.4
- Chemistry4
- Classrooms4
- College radio stations4
- Construction4
- Medical instruments and apparatus4
- Portraits4
- Post-office boxes4
- Rock music4
- Video arcades4
- Actors3
- Archaeology3
- Carnival games3
- Census districts--United States--Maps3
- Chess3
- College fraternity members3