Public Health Walk

3. Founding editor of The Lancet
5. First person to carry out anaesthesia in Britain
8. Expert in anatomy, obsessive collection of biological specimens
11. Founded Royal Free Hospital
12. Frequently referred to as the "Father of British Paediatrics"
13. Cancer that originates in a specific type of white blood cell named for him
14. Called the world's first neurosurgeon
15. Credited with creating drinking chocolate (yes, it's medicine, ask anyone)
16. First British Nobel Laureate for his work on the transmission of malaria

1. Healthcare reformer. Helped to establish London's first public hospitals
2. First woman to qualify in Britain as a physician and surgeon
3. Philanthropist. Founded a hospital for abandoned children - the world's first incorporated charity
4. Has a hospital named after him in Oxford
6. In 2004, voted the greatest Black Briton
7. Scottish anatomist and physician, brother of 8 Across
9. Spent 30 years campaigning for the state registration of nurses
10. Curtailed a cholera outbreak by removing the handle of a water pump