Darwinism Stated By Darwin Himself. Characteristic Passages From the Writings of Charles Darwin
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In our eReader you can find the full English version of the book. Read Darwinism Stated By Darwin Himself. Characteristic Passages From the Writings of Charles Darwin Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Darwinism Stated By Darwin Himself. Characteristic Passages From the Writings of Charles Darwin
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., r whelmmg amount of evidence to make us be- lieve that any animal could blush. The reddening of the face from a blush is due to the relaxation of the muscular coats of the small arteries, by which the capillaries be- come filled with blood ; and this depends on the proper vaso-motor center being afEected. No doubt, if there be at the same time much mental agitation, the general cir- culation will be afEected ; but it is not due to the action of the heart that the net-work of minute vessels c...overing the face becomes, under a sense of shame, gorged with blood. We can cause laughing by tickling the skin ; weeping or frowning, by a blow ; trembling, from a fear of pain, and so forth ; but we can not cause a blush, as Dr. Burgess remarks, by any physical means — that is, by any action on the body. It is the mind which must be afEected. Blushing is not only involuntary, but the wish to restrain it, by leading to self-attention, actually in- creases the tendency.
The tendency to blush is inherited.
What to read after Darwinism Stated By Darwin Himself. Characteristic Passages From the Writings of Charles Darwin?
You can find similar books in the "Read Also" column, or choose other free books by Darwin, Charles, 1809-1882 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
., r whelmmg amount of evidence to make us be- lieve that any animal could blush. The reddening of the face from a blush is due to the relaxation of the muscular coats of the small arteries, by which the capillaries be- come filled with blood ; and this depends on the proper vaso-motor center being afEected. No doubt, if there be at the same time much mental agitation, the general cir- culation will be afEected ; but it is not due to the action of the heart that the net-work of minute vessels c...overing the face becomes, under a sense of shame, gorged with blood. We can cause laughing by tickling the skin ; weeping or frowning, by a blow ; trembling, from a fear of pain, and so forth ; but we can not cause a blush, as Dr. Burgess remarks, by any physical means — that is, by any action on the body. It is the mind which must be afEected. Blushing is not only involuntary, but the wish to restrain it, by leading to self-attention, actually in- creases the tendency.
The tendency to blush is inherited.
What to read after Darwinism Stated By Darwin Himself. Characteristic Passages From the Writings of Charles Darwin?
You can find similar books in the "Read Also" column, or choose other free books by Darwin, Charles, 1809-1882 to read onlineMoreLess
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