Darwin from Descent of Man to Emotions "confirmed invalid" and at his brother Eramus's over Christmas 1872 sat drawing up his will. Darwin recovered and pressed on with several projects. He subsequently tackled a new edition of the "Descent of Man", incorporating ideas from Galton and new anecdotes. The manuscript was completed in April 1874, and the new edition was published on 13 November. Darwin continued his work following this period. Darwin from Descent of Man to Emotions Between 1868 and 1872, the life and work of Charles Darwin from "Descent of Man" to "Emotions" continued with aspects of his intended "Big Book" on evolution through natural
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,