... and exhibited, in short, all the (physical) characteristics of complete sexual maturity. In accordance with the theoretical views of that day, more especially as a result of the wide acceptance of the phrenological doctrines of Gall, it was generally believed that an exceptional development of the cerebellum (which was supposed by Gall to be the seat of the sexual impulse) was the determining cause of such premature awakening of the ... — The Sexual Life of the Child • Albert Moll