"Pigmentation" Quotes from Famous Books
 ... anaesthetic, and I could then proceed at my leisure, without being inconvenienced by its movements. The causation of tinctumutation is now definitely known. The theory that light acts directly on the chromatophoric cells has been proved to be incorrect. Even the theory that light occasions pigmentation is no longer tenable. I have, time and again, reared tadpoles from the eggs in total darkness, yet they differ in no respect from those reared in full daylight. The chromatophores were as abundant and responded to irritation as promptly in ...
— The Dawn of Reason - or, Mental Traits in the Lower Animals • James Weir
... rural districts. Pellagra is epidemic in northern Italy and the south of France. The disease is manifested by a redness and discoloration of the exposed parts of the body. It is most active during the hot weather, the inflammation subsiding in the winter, leaving a pigmentation of the skin. Each year the symptoms become more alarming, nervous disorders finally setting in, and a large number die insane. The disease is most prevalent in the country. In the towns, where maize is supplemented by other articles of food, ...
— Scientific American Supplement, No. 392, July 7, 1883 • Various
... skin, asthenia, irritability of the gastro-intestinal tract, and weakness and irregularity of the heart's action: these symptoms being due to loss of function of the suprarenal glands. It is important to note, however, that Addison's Disease may occur without pigmentation, and pigmentation without Addison's Disease. The condition was first recognized by Dr Thomas Addison of Guy's Hospital, who in 1855 published an important work on The Constitutional and Local Effects of Diseases of ...
— Project Gutenberg Encyclopedia
... illustration of the constructive genius of nature, which is not beatific, as any which the mind of man may discover. Its great superiority lies in an almost unbelievable power of simulation, which relates solely to the pigmentation of its skin. In electrical mechanics we pride ourselves on our ability to make over one brilliant scene into another in the twinkling of an eye, and flash before the gaze of an onlooker picture after picture, which appear and disappear as we look. The directive control of Mycteroperca ...
— The Financier • Theodore Dreiser
... and rare, too. Allow me to look closely at that discoloration once more for a moment. Cutis cenea, bronze skin, they call it sometimes—extraordinary pigmentation—a little more to the light, if you please—ah! now I get the bronze coloring admirably, beautifully! Would you have any objection to showing your case to the Societies of Medical Improvement ...
— The Poet at the Breakfast Table • Oliver Wendell Holmes, Sr.
... have never been outside Europe can hardly imagine the intensity of the colour prejudice that white men develop when brought into contact with any different pigmentation. I have seen Chinese of the highest education, men as cultured as (say) Dean Inge, treated by greasy white men as if they were dirt, in a way in which, at home, no Duke would venture to treat a crossing-sweeper. ...
— The Problem of China • Bertrand Russell
... decreased in the tame rabbit. This may be due to disuse; the excretions and secretions of the nervous tissues would be diminished, and the corresponding determinants less stimulated. Another instance is afforded by pigmentation of the skin in man; which varies with the amount of light and heat from the sun to which the skin is exposed. Specific excretory products of pigment in the skin may stimulate the pigment determinants in the ...
— Hormones and Heredity • J. T. Cunningham |
