Chu 69 Cohen 



CHUANG, HSIAO-HUI Das Material uber die Zusammenarbeit der 

 Keimblatter — Versuche mit Grossdefekt an verschiedenen Re- 

 gionen der Neurula — soil weiter bearbeitet werden. Triton al- 

 pestris und 77. taeniatus. Ilia. lc. J. 



Idariibcr erschien bereits eine vorlaufige Mitteilung in Z. Natur- 

 forschg 2b. 1947) 



Die Wirkung von Sulfa- Verbindungen auf die embryonale Ent- 



wicklung von Rana nigromaculata. Illb. 2a. e. J. 



CIGADA, M. Development of myosin and actin. Vertebrates. 



Illb. 12. V. 

 CITTERIO, P. Determination in early development. Amphibia and 



Echinodermata. Ilia. lc. J. and G. 



CLAES, M. T. The development of the trabeculae cranii in perch 



embryos treated with LiCl. Perca (Osteichthyes). Ilia. 11. I. 



(in collaboration with G. VANDEBROEK) 

 CLANCY, CI. W. Relations of genes in the development of eye colour 



in Drosophila melanog aster. Hie. 3. D. 



Biochemical studies of the eye pigments in Drosophila melanogaster. 



Illb. 10. c. D. 

 CLARK, E. R. Studies on growth of various implanted tissues with 



the rabbit's ear chamber technique. Ilia. 19. M. 



(in collaboration with R. G. WILLIAMS) 



CLARK, H. Effect of ultrasonic vibrations on molting response in the 

 newt, on regeneration of the limbs of the newt, and on gonads. 

 Triturus viridescens. IV. 4. J. 



Carbohydrate and fat metabolism in chick embryos. Gallus do- 



mesticus. Illb. 2a. b. L. 



CLARK. L. B. (data not yet received). 



CLARK. S. L. (no embryol. work in progress). 



CLAVERT, }. Egg formation in birds. (Role of female hormone in 

 vitellogenesis). Pigeon, duck and chick. Illb. 4. f. L. 



CLEAVE, H. J. van (data not yet received). 



CLEMENT. A. C. (data not yet received). 



CODDENS, J. G. The influence of different hormone-concentrations 

 on the growth of tissue-cultures of embryonic origin. We search 

 for the optimal concentration of several hormones (growth-prom- 

 oting hormone, oestrone, a.o.) for different sorts of tissues. Gallus 

 domesticus. Illb. 19. f. L. 



COHEN, S. The chemistry of muscle differentiation. Fractionation of 

 proteins, determination of nucleic acids in mitochondria, nuclei and 

 cytoplasm of muscle tissue in differentiated state at various stages 

 of differentiation of fibrils and cross-striation during development 

 of isolated somites and undifferentiated mesoderm. Chick. 

 (in collaboration with H. HERRMANN) Illb. 12. c. L. 



Metabolic interaction between tissues. Exchange of metabolites 



between tissue components (epithelium-stroma) with different de- 

 grees of oxidative or anaerobic metabolism. The investigation is 

 carried out with model tissues, such as cornea, as well as with 

 tissue-cultures. Higher Vertebrates. Illb. 2b***. b. HV.(?) 



(in collaboration with H. HERRMANN) 



