Morton used dubious practices to garner the results he internally desired in regard to average skull/brain size. It appears he used known smaller size skulls of Hindus, Egyptians, and Africans to achieve their averages, while using larger skulls for whites. The concept of larger body/skull = more intelligence has proven false. Morton also invalidated his own tests by changing the frequency of the control. He would lightly shake an african skull with seed to determine the volume, while he would shake a whites skull hard and push in as many seeds as he could to achieve a higher volume. He would also round up whites numbers while rounding down all others. This absolute junk science was the product of a misguided discourse community using what it knew of science and used that to alter tests to justify white supremacy for whatever aims they had at the time.
When “Dr.” Morton died in 1851 he was highly respected as a man of science. However, when later analyzing his data, it was discovered that it was all fudgings on a zealous man desperately attempting to scientifically prove other races were inferior to his own.
PVF Explains how interracial breeding was looked down upon at the time and how women were treated poorly if they had children with a black man. Children of interracial breeding were viewed as “less than” and they would not be beneficial to their parents or society.