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YCAS. M. (data not yet received). 



YNTEMA, C. L. Induction and differentiation of ear ectoderm. Am- 

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Regeneration of aneural limbs. Amblystoma punctatum. IV. 4. J. 



Development of autonomic nervous system. Gallus domesticus. 



Ilia. 9. L. 



Effects of sulfa drugs on mammalian embryo. Mus musculus. 



Hid. 2. M. 



ZAAIJER, Miss J. J. P. Factors governing dentin formation. Mus 

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Role of the odontoblasts in the formation of secondary dentin. 



Mus mu.sculus. Ilia. 8. M. 



ZAKARIAS, Z. Changes in the proctal epithelium in its embryonic 

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fin collaboration with S. KPOMPhCHbR) 



ZEUTHEN, E. Study with Cartesian divers of mitotic rhythm in 

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ZHINKIN, L. (data not yet received). 



ZWEIBAUM, }. (no embryol. work in progress). 



ZWILLING, E. The role of epithelial components in the developmental 

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The effect of nicotinamide and a-ketoglutaric acid on insulin- 

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Hypoglycemia following injection of insulin into chick embryos 



of 30 hours of incubation; relation to rumplessness. Gallus domes- 

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Sulfanilamide and its micromelia-inducing effects in chick embryos; 



enhancement of the effects by para-aminobenzoic acid and anta- 

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