The first idea Gould tackles is that of craniometry, the measuring of skulls. In the past, scientists filled skulls with different mediums and measured how much they could hold, the idea being that the more skulls could hold, the larger the brain would be. Even though the numbers didn’t match up, the scientists stated that whites have larger skulls. He states the Aprioli assumption of the previous scientists, that white brains are larger, which in turn leads to more intelligence; however, Gould’s Aprioli assumption is that he fundamentally believes in racial equality. Gould realizes that brain size is determined by body size, time of death, cause of death, and diseases contracted during life. In Structure of Scientific Revolutions, Thomas Kuhn explains that the previous scientists weren’t necessarily doing bad science, but they were working with normal science under the idea that whites have bigger brains. The previous scientists discarded their anomalies, even though the anomalies should have told them their theory might have been