Fig. 1 on the same plate, copied from
Dr. Duchenne's work 4 represents, on a reduced scale, the face,
in its natural state, of a young man who was a good actor.
In fig. 2 he is shown simulating grief, but the
[3] In the foregoing remarks on the manner in which the eyebrows
are made oblique, I have followed what seems to be the universal
opinion of all the anatomists, whose works I have consulted on
the action of the above-named muscles, or with whom I have conversed.
Hence throughout this work I shall take a similar view of the action
of the _corrugator supercilii_, _orbicularis, pyramidalis nasi_,
and _frontalis_ muscles. Dr. Duchenne, however, believes, and every
conclusion at which he arrives deserves serious consideration, that it
is the corrugator, called by him the _sourcilier_, which raises the inner
corner of the eyebrows and is antagonistic to the upper and inner
part of the orbicular muscle, as well as to the _pyramidalis nasi_
(see Mecanisme de la Phys. Humaine, 1862, folio, art.
v., text and figures 19 to 29: octavo edit. 1862, p. 43 text).
He admits, however, that the corrugator draws together the eyebrows,
causing vertical furrows above the base of the nose, or a frown.
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