The following is Dr. Shuttleworth's classification of mental defect (congenital) as follows:? Microcephalus, hydrocephalus, mongol or " Kalmuc " type, scrofulous cases, birth palsies with athetosis, congenital cretinism, and primary neurotic. The developmental types are eclamptic, epileptic, syphilitic (inherited), and the accidental or acquired are traumatic, postfebrile (both inflammatory), e...