The child's book of nature for the use of families and schools : intended to aid mothers and teachers in training children in the observation of nature . 7es shut. We often see a beauti-ful smile in the face of the sleeping infant. It is because somepleasant dream in his mind plays on the nerves that go to hissmiling There are muscles to pull the corners of the mouth down, andthese make the face look sad; and if the muscles that wrinkle the 88 MORE ABOUT THE MUSCLES. The sad muscles. Down in the mouth. The proud muscle. eyebrows act at the sametime, the face is both sadand cross, as
The child's book of nature for the use of families and schools : intended to aid mothers and teachers in training children in the observation of nature . 7es shut. We often see a beauti-ful smile in the face of the sleeping infant. It is because somepleasant dream in his mind plays on the nerves that go to hissmiling There are muscles to pull the corners of the mouth down, andthese make the face look sad; and if the muscles that wrinkle the 88 MORE ABOUT THE MUSCLES. The sad muscles. Down in the mouth. The proud muscle. eyebrows act at the sametime, the face is both sadand cross, as you see hereObserve just what the dif-ference is between this faceand the laughing face onthe preceding page. Thedifference is merely in thecorners of the mouth andin the eyebrows. In thisface the two wrinklers ofthe eyebrows are in action,and so are the two musclesthat pull down the cornersof the mouth. Four small muscles, then, make this face sadand cross. But in the laughing face the eyebrow-wrinklers arequiet, and the corners of the mouth are pulled up instead ofbeing pulled down. It is the two little muscles that pull upthe corners of the mouth that do all the laughing in the face. ->You have often heard the expressions, He had a downlook, and His countenance fell. These refer to the effectproduced by sadness o
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Keywords: ., bookauthorho, bookcentury1800, bookdecade1880, booksubjectscience
