Snow convinced the Board of Health to remove the water pump that was on Board Street. After months of battling the type of disease London was faced with, Mr. London didn’t have a place where the sewers could lead off to which keep the disease spreading when people used the restroom. As the days went by and the number of deaths began to increase, the Board of Health in London began to improve people’s living conditions by creating the indoor restroom, This, however, caused more problems for the people of London, due to the lack of a proper sewage system, “London needed a citywide sewage system that could remove waste products from houses in a reliable and sanitary fashion,… The problem was one of jurisdiction, not execution,”(). Whitehead was observing eople with the bacteria and studied their living conditions to help determine if the air is the main cause to the V. While this was going on, another man named Henry Whitehead was also conducting his own research on the matter. Snow work harder to prove the science community wrong.

Snow to convince the other scientist that it was a waterborne disease and that an improvement to the water supply has to be done immediately. In the book, it says that “The popular fear cholera was amplified by the miasma theory of its transmission.

cholera was a waterborne disease and that if there was a way to sanitize the contaminated water at the source, the disease will lose its devastating grip on London, During this time, however, many of the scientist studying the disease believed it to be a miasma and was spreading because of the foul smells within the poor, cramped portion of London. With this evidence, Mr, Snow was able to build his case on why V. Snow learned that the survivor where drinking water from specific wells before they got sick so he went and gathered water samples, “Cholera wasn’t something you inhaled. He discovered that the disease was a waterborne disease after a series of interviews with London people in specific regions of London who managed to survive the plague. John Snow, an anesthesiologist, began to research what played a role in the deaths and how it could be cured and stopped. The book, written by Steven Johnson, tells about how the water and the lack of proper sewage systems lead to a disease that killed many citizens and lead to panic for Londoners. Summary The Ghost Map was a historical piece of literature that was used to explain the V.

The ghost map by steven johnson