. The expression of the emotions in man and animals. •1^7^^ Chap. X. SNEERING AND DEFIANCE. 251 eyes he drew up the outer part of the upper lip, and discovered a sharp angular tooth. The uncovering of the canine tooth is the result of adouble movement. The angle or corner of the mouthis drawn a little backwards, and at the same time amuscle which runs parallel to and near the nose drawsup the outer part of the upper lip, and exposes thecanine on this side of the face. The contraction ofthis muscle makes a distinct furrow on the cheek, andproduces strong wrinkles under the eye, especially atits
. The expression of the emotions in man and animals. •1^7^^ Chap. X. SNEERING AND DEFIANCE. 251 eyes he drew up the outer part of the upper lip, and discovered a sharp angular tooth. The uncovering of the canine tooth is the result of adouble movement. The angle or corner of the mouthis drawn a little backwards, and at the same time amuscle which runs parallel to and near the nose drawsup the outer part of the upper lip, and exposes thecanine on this side of the face. The contraction ofthis muscle makes a distinct furrow on the cheek, andproduces strong wrinkles under the eye, especially atits inner corner. The action is the same as that ofa snarling dog; and a dog when pretending to tightoften draws up the lip on one side alone, namely thatfacing his antagonist. Our word sneer is in fact thesame as snarl, which was originally snar, the I beingmerely an element implying continuance of action. ^^ I suspect that we see a trace of this same expressionin what is called a derisive or sardonic smile. The lipsare then kept joined or almost j
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