Chapter 8 Images:

Figure 8.1Figure 8.1. Figure 8.1. Snow's 1849 theory of cholera.






Figure 8.2Figure 8.2. Diagram of house drainage at Albion Terrace. Drains, water pipes, and tanks were found to have leaky joints. Water levels in the cesspools and drains were higher than the levels in the water tanks (adapted from Snow, MCC).


Figure 8.3Figure 8.3. Diagram of Albion Terrace showing main events suggesting sewage contamination of drinking water at a time when cholera evacuations were present in the sewage (adapted from Snow, MCC).

Figure 8.4Figure 8.4. Budd's contagion theory.