Across
- 2. Discovered the theory of opposites
- 6. The first antibiotic
- 7. The process of heating something to kill bacteria
- 8. Set up by Bevan in 1948
Down
- 1. The most common treatment in medieval England
- 3. Corrected over 200 of Galen's mistakes
- 4. Small silk threads
- 5. Discovered the first smallpox vaccination