Ph. R. Waggoner

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Larvae of Xenopus laevis at stages 50-53 were lentectomized and then injected with tritiated thymidine at various times after lentectomy. In series I, the animals were injected 1,2,3,4,6,8,10,12,15, or 17 days after lens removal and fixed three hours after injection. Autoradiograpns of serial cross sections through the eyes were prepared. Increased(More)
The production of microvilli on the developing chick anterior corneal epithelium is drastically accelerated by the administration of exogenous thyroxine and the effects are seen as early as 2 days after injection. Thiouracil administration slightly retards the production of microvilli though its effects are not so pronounced.
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