Maudsley, Henry (1879) The Pathology of Mind
Maudsley, Henry (1879) "The Pathology of Mind". London: MacMillan and Co.
Henry Maudsley's "The Pathology of Mind" is one of the earliest detailed scientific descriptions of disorders of mental development. In Chapter 6, "The insanity of early life", Henry Maudsley describes a variety of clinical cases of children hospitalized due to mental disorder or developmental delay. His scientific account is one of the first to identify "insanity" within the developmental capacity to express disorder ("Suppose now that an infant becomes insane soon after birth, what sort of insanity must it exhibit! The range and variety of mental disorder possible are clearly limited by the extent of existence of mental faculty; which is almost nothing."). The full text is available online: