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177. Smith, H. C, Proc. Roy. Soc. Lond., B. 125:250-263 (1938). Dual control of 

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178. Smith, P. E., Anat. Rec. 11:57-64 (1916). Hypophysis and amphibian color 

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179. Smith, R. I., Physiol. Zool. 15:410-417 (1942). Mechanism of color change, 

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188. Sumner, F. B., Proc. Nat. Acad. Sci. 30:285-294 (1944). Morphological color- 

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