EUL253439 The Muscles of the face, from Charles Bell\'s (1774-1842) \'Essays on the Anatomy of Expression in Painting\', 1806 (litho) by Stewart, John (19th century); Edinburgh University Library, Scotland; (add.info.: Bell saw facial expression and body language as an important part of his research into the brain;); 穢 Edinburgh University Library ; With kind permission of the University of Edinburgh; English, out of copyright.