STUDIES ON X-RAY EFFECTS : XV. THE PREVENTION OF PIGMENT FORMATION IN THE HAIR FOLLICLES OF COLORED MICE WITH HIGH VOLTAGE X-RAY.
1. Hard x-rays prevent the formation of pigment in the hair follicles of mice, with result that hair previously black comes in white. 2. Exposure of the ventral side of a mouse to the x-rays causes the hair on the back to come in white about 40 to 50 days after it has whitened the hairs on the abdomen.
Hance
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Laboratories of The Rockefeller Institute for Medical Research.
Murphy
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