Pigmentation changes in tadpoles of Rana
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H. W. Beams; R. L. King
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Article
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1938
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John Wiley and Sons
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English
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## Abstract Centrifuging the eggs of Rana pipiens in the early gastrula stage prevents the formation of the hypophysis in some of the tadpoles. The absence of the melanophorotropic hormone normally secreted by the hypophysis seems to be responsible for the contraction of the pigment cells. In addit