. A text-book of animal physiology [microform] : with introductory chapters on general biology and a full treatment of reproduction, for students of human and comparative (veterinary) medicine and of general biology. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. â â '^f^^^^* 1â>»,â »â ^**^''^-^'^j|ij^^^|^^_J|tj^^ ANIMAL PHYSIOLOGY. mixture of the wave-lengths of red and yellow. Again, certain colors known as complementary by psychic fusion gave rise to white, though no physical mixture of such colored pig- ments will produce white. These
. A text-book of animal physiology [microform] : with introductory chapters on general biology and a full treatment of reproduction, for students of human and comparative (veterinary) medicine and of general biology. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. â â '^f^^^^* 1â>»,â »â ^**^''^-^'^j|ij^^^|^^_J|tj^^ ANIMAL PHYSIOLOGY. mixture of the wave-lengths of red and yellow. Again, certain colors known as complementary by psychic fusion gave rise to white, though no physical mixture of such colored pig- ments will produce white. These are red and blue-green; orange and blue; yellow and indigo-blue; green-yellow and violet. Now, when a child beholds orange, he has not the faintest idea that it is related to red, or that white can be in any way produced from any combination of colors, any more than, when he hears a perfect musical chord, has he any idea of its being produced by the simultaneous production of its component notes. To him both the colors and the chord are independent facts. But by simple experiments their origin may be illus- trated. As regards comple- mentary colors, Lambert's ex- periment may easily be per- formed: Place a red wafer (or a slip of paper) on a sheet of white paper, and about three inches behind it a blue one. Hold a plate of glass be- tween the two and vertically, so that while gazing at the red wafer through it a re- jected image of the blue one will be thrown into the eye in the same direction as that of the red image, the result being a sensation of purple. As before referred to, a rotating disk on which all the colors of the spectrum are represented in equal subdivisions, when the speed is sufficiently great, appears white from the fusion of the sensations. Of course, instead of all the colors, complementary ones suffice. As a matter oflBBt, we may recognize six funda- mental oolowK-white, black, red, yellow, green, and blueâand these may be ^outcome of the p
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Keywords: ., bookauthormillswes, bookcentury1800, bookdecade1880, bookyear1889
