Watson was unusual among the phrenologists in explicitly disavowing phrenology in later life. In the mid-1820s, a split emerged between the Christian phrenologists and Combe's closer associates. Watson was unusual amongst phrenologists in explicitly disavowing phrenological ideas in later life. Epps was influenced not only by continental phrenologists. Few phrenologists argued against the emancipation of the slaves. Phrenologists also laid stress on the modularity of mind. Phrenologists rejected supernatural explanations and stressed the modularity of mind. Phrenologists relied on cranioscopic readings of the skull to find organ locations. Especially in Britain and the US, people visited phrenologists to have their heads analysed.