Yo 100 Zwi 



YOUNG W. C. Ph.D.. Prof. — Dept of Anat., Univ. of Kansas, Med. 

 School. LAWRENCE. Kansas, U.S.A. 



a. Reproduction as influenced by hypothyroidism and hyperthyroidism in 

 both males and females. Cai>ia porcellus (Rodentia) 



b. Sexual behaviour in the male. Cavia porcellus (Rodentia) 

 ZAAIJER, Miss J. J. P. Ph.D. — Lab. for Exper. Histol.. Fac. of Med., 



Univ. of Leydcn. Wassenaarseweg, Boerhaavekwartier, LEIDEN, Hol- 



a. Factors governing dentin formation. Mus musculus (Rodentia) land 



b. Role of the odontoblasts in the formation of secondary dentin. Mus 

 musculus (Rodentia) 



c. Cartilage and bone formation in vitro. Homo sapiens (Primates) 

 ZACWILICHOWSKA. Miss K. D.Sc. — Zool. Dept of the Jagellonian 



Univ.. St Anne 6. KRAKOW, Poland 



(no data received on Nov. 1"', 1953) 

 ZAHND, J. P. — Inst. d'Embryol., Fac. de Med., 1 Place de I'Hopital, 



STRASBOURG. France 

 a. Developpement du squelette. Facteurs influenqant le developpement. 



Anas (Aves) 

 ZENKER. W. J. Dr Med. — Anat. Inst, der Univ. Wien, Wahringerstr. 



13. WIEN IX, Oesterreich (no embryological work in progress) 



ZEUTHEN. E. Dr Phil. — Lab. of Zoophysiol.. Nat. Sci. Fac, Univ. of 



Copenhagen, Juliane Mariesvej 32, COPENHAGEN 0. Denmark 



a. Study with Cartesian divers of mitotic rhythm in metabolism during 

 cleavage period. ( Echinodermata and Amphibia) 



b. Determination of desoxyribonucleic acid in eggs and embryos, evidence 

 of cytoplasmic desoxyribosides. (Amphibia) (in collaboration with E. 

 HOFF-JORGENSEN) 



c. Mitotic rhythm in reduced weight (weight below water) during clea- 

 vage. Psammechinus microtuberculatus (Echinoidea) 



ZUCKERMAN. S. M.A., M.D.. D.Sc. M.R.C.S.. L.R.C.P.. F.R.S.. Prof. — 

 Dept of Anat.. The Med. School. Birmingham Univ.. Edgbaston, BIR- 

 MINGHAM 15. England (U.K.) 

 (no data received on Nov l'^', 1953) 



ZUIDWEG. M. H. J. — Anat.-Embryol. Inst.. Municipal Univ. of Amster- 

 dam. Mauritskade 61. AMSTERDAM O, Holland 

 a. Quantitative development of different proteins in the embryonic eye-lens. 

 Gallus domesticus (Aves) 



ZWEIBAUM. J. Dr. Prof. — Inst, of Histol. and Embryol.. Acad, of Med., 



ul. Chalubinskiego 5. WARSZAWA. Poland 



a. Le comportement de graisses dans le placenta. Homo (Primates), Mus 



musculus (Rodentia) (Insecta) 



h. Le glycogene. les graisses et les acides nucleiques dans les oeufs. 



ZWILLING, E. Ph.D.. Assoc Prof. — Dept of Genet.. Coll. of Agric. 

 Univ. of Connecticut, Storrs Aqric. Exper. Stat., STORRS. Conn., 

 U.S.A. 



a. Effects of thyroxin on the embryo. Gallus domesticus (Aves) 



b. Analysis of tail development. Gallus domesticus (Aves) 



c. Disaggregation and reaggregation of early embryos. Effects on diffe- 

 rentiation. Gallus domesticus (Aves) 



d. Culture behavior of early embryonic tissues. Gallus domesticus (Aves) 



