Essays on the anatomy of expression in painting (1806)
Bell, Charles, Sir, 1774-1842 · London : Printed for Longman, Hurst, Rees, and Orme · leaf 163
13.5 … I introduce this drawing not as exemplifying the action of the muscles, but chiefly as a contrast to the other sketches. Here there is a placid calmness in the features, a reverent attention with an elevation of thought. The whole is very different from the working of the features in the diversity…
Facial Expression · Anatomy, Artistic
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.