Henry Maudsley brief period in public and charitable asylums. In the same year he was appointed co-editor of the "Journal of Mental Science", an influential position he retained for 15 years. Maudsley was elected a Fellow of the Royal College of Physicians and delivered their Gulstonian Lectures in 1870 on "Body and Mind". The text of Maudsley's lectures was studied carefully by Charles Darwin in the preparation of his "The Expression of the Emotions in Man and Animals" (1872). Maudsley was appointed Professor of Medical Jurisprudence at University College London from 1869 to 1879. Maudsley married John Conolly's daughter, Ann Conolly, in
The Expression of the Emotions in Man and Animals shows how human emotions link mental states with bodily movement, and are genetically determined, deriving from purposeful animal actions. He comments on the implications of the book: a single origin for the entire human species, with universal human expressions; and he stresses the social value of expression, citing the emotional communication between mother and child. This was one of the first books to be illustrated with photographs – with seven heliotype plates – and the publisher John Murray warned that this "would poke a [terrible] hole in the profits". The published book assembled illustrations rather like a Victorian family album,