In the next part of Ghost Map, the story begins to focus on a man named John Snow. Snow was a scientist that had made great improvements in the delivery and use of Chloroform and ether so that it could be safely administered to patients. He became interested in studying and trying to solve the cholera epidemic that was sweeping the Soho and broadstreet area in London. The current theory of what spread cholera was smell or some sort of airborne disease, but Snow didnt believe that was the case because of the way the disease seemed to be spreading and how it was confining itself to certain areas. I think its interesting however that Snow was able to pick up on water as the possible carrier of the disease. It would be interesting to know if that was his first hunch, or if he pursued a few other theories to the spread of cholera at the same time before he settled on the waterborne theory. It was fascinating to see Snows foresight and ability to piece together a huge amount of information on the micro level to the city wide level in helping to determine a theory and discover how cholera was assailing London.
