. The biology of the frog. Frogs. FIG. 51. — Sections through the skin of the tree frog. In A the skin appears yellow; the black pigment is concentrated, and considerable light is reflected through the yellow chromatophores from the deeper tissues. In B the color of the skin is green ; the black chromatophores are in a state of moderate extension, forming a dark layer beneath the yellow cells, so that most of the light passing through the yellow cells is reflected from the bluish granules. In C the pigment from the black chromatophores has surrounded the yellow cells, giving the skin a very da
. The biology of the frog. Frogs. FIG. 51. — Sections through the skin of the tree frog. In A the skin appears yellow; the black pigment is concentrated, and considerable light is reflected through the yellow chromatophores from the deeper tissues. In B the color of the skin is green ; the black chromatophores are in a state of moderate extension, forming a dark layer beneath the yellow cells, so that most of the light passing through the yellow cells is reflected from the bluish granules. In C the pigment from the black chromatophores has surrounded the yellow cells, giving the skin a very dark color. (From Gaupp, after Ehrmann.) green. The yellow medium absorbs most of the colors of the spectrum, allowing yellow and a certain amount of green light to pass through. The blue background reflects only blue and green light. Since green rays are the only ones which are capable both of reflection from the blue back- ground and of passing through the yellow medium, the back- ground appears of a green color, o. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Holmes, Samuel J. (Samuel Jackson), 1868-. New York, London, Macmillan
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Keywords: ., bookauthorholmessamueljsamuelja, bookcentury1900, bookdecade1910
