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Tag: "Smiing"      Page 1 of 1

The sound of laughter is produced by a deep inspiration followed by short, interrupted, spasmodic contractions of the chest, and especially of the diaphragm. Hence we hear of ||laughter holding both his sides. From the shaking of the body, the head nods to and fro. The lower jaw often quivers up and down, as is likewise the case with some species of baboons, when they are much pleased.
During laughter the mouth is opened more or less widely, with...
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Charles Darwin


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