Across
- 1. System for sending correspondence.
- 4. Chart of a geographic area.
- 6. To respond.
- 7. Specialist in ancient eras.
- 8. System for secret messaging.
- 9. Person who travels for pleasure.
Down
- 2. Letters of a writing system.
- 3. A reflecting surface.
- 5. To produce impressions.
- 6. Communication by electric waves.