Caldwell and Phrenology and the Global Politics of Reform

A lot of dr. Caldwell's abolitionist friends were Phrenologists too the two things were not mutually exclusive and actually many abolitionists in America were phrenologists as well. One such man was George comb who was an abolitionist during the 19th century Combs books on natural science actually outsold Charles Darwin's The reason you haven't heard about comb is that he wrote heavily about phrenology, which we now know is nonsense He and Caldwell were friends or at least friendly and they wound up on opposite sides of the slavery issue So common Caldwell wrote many letters to each other actually debating whether or not it was okay to keep slaves.