humanguineapig

Front cover from "Mecanisme de la Physionomie Humaine"

from National Science and Media Museum

• 43 older comments, and then…
• bygabi said:

  OMG ; )

• Comfortable Thought said:

  I think this series of photos was also used in Darwin's The Expression of the Emotions in Man and Animals.

• Rodrigo Balan Uriartt said:

  classic document

• RAMON REYES CARRASCO said:

  Duchenne en sus experimentos de electroestimulacion, se dio cuenta que las verdaderas sonrisas involucran musculos de los ojos, lo que nos permite darnos cuenta de las sonrisas falsas de las personas, las cuales no lo presentan. No se dejen engaÑAr.........

• BobMeade said:

  @ Hello, I am Bruce - right you are. See here: www.flickr.com/photos/nationalmediamuseum/3084041451/