VITTORELLI, Miss M. L. Ph.D. — 1st. di Anat. Comp., Fac. di Sci., Univ. di Palermo, Via 



Archirafi 22, PALERMO, Italia 

 a Mechanism of interaction of ribosomes from unfertilized eggs and blastulae with poly- 



uridylic acid. Paracentrotus lividus (Echinoidea) 

 VIVIEN, J. H. Dr.es Sci., Prof. — Lab. de Zool. et d'Embryol. exper., Fac. des Sci.. Univ. 



de Strasbourg, 12 Rue de I'Universite. STRASBOURG. France 

 VLIEGENTHART, W. E. Drs. — Anat.-Embryol. Lab., State Univ. of Utrecht, Janskerkhof 



3A, UTRECHT. Netherlands 

 VOCE, Mrs. M. Ph.D., Prof. — Dept. of Med. Microbiol, and Immunol.. School of Med.. 



Univ. of California, LOS ANGELES. Calif. 90024, U.S.A. 

 VOLKOVA, Miss L. S. Cand.med.sci. — Inst, of Exper. Biol.. Acad, of Med. Sci. of the 



U.S.S.R.. Baltiyskaya St. 8, MOSCOW A-315. U.S.S.R. 

 a Immunological factors in the pathogenesis of haemolytic disease in newborns. Homo 



sapiens (Primates) 

 VOLLRATH. L. Dr.med. — Anat. Inst, der Univ.. Koellikerstr. 6. 87 WuRZBURG. Deut- 

 sche Bundesrepublik 

 a Development of the small intestine under normal and experimental conditions (histology. 



histochemistry, electron microscopy; absorption of fat, carbohydrates, and protein in the 



fetal bowel; enzyme induction). Raftus norvegicus (Rodentia) 

 VOLPE, E. P. Ph.D., Prof. — Dept. of Biol., Newcomb Coll. of Tulane Univ.. NEW 



ORLEANS, La. 70118, U.S.A. 

 a Neural crest homotransplantation and its relation to the phenomena of immunity and 



tolerance. Rana pipiens (Anura) 

 b Blood cell chimerism in parabiotic animals, as revealed in chromosome preparations of 



cultured leucocytes. Rana pipiens (Anura) 

 c Histocompatibility studies in animals produced by nuclear transplantation. Rana pipiens 



(Anura) (in collaboration with R. G. McKINNELL) 

 VSEVOLODOV. E. B. Cand.biol.sci. — Dept. of Embryol.. Fac. of Biol.. Moscow Univ.. 



MOSCOW V-234, U.S.S.R. 



• VYAZOV. O. E. Dr.Med.Sci.. Prof . — Dept. of Exper. Embryol.. Inst, of Exper. Biol.. 



Acad, of Med. Sci. of the U.S.S.R., Baltiyskaya St. 8. MOSCOW A-315, U.S.S.R. 

 a The formation and localization of organ- and stage-specific proteins (antigens). (Vecte- 



brata) 

 b Study of interrelations between organs of mother and fetus. 



1. Study of development of lungs and thyroid glands in fetuses after extirpation of parts 

 of the same organs in the mother. Rattus norvegicus (Rodentia) 



2. Study of antibcMdies to stage-specific antigens and those of foetal leucocytes and 

 platelets in maternal blood. Homo sapiens (Primates) 



WADA, S. Dr.rer.nat. — Zool. Inst., Univ. E>usseldorf, Mettmannerstr. 16-18, 4-DuSSEL- 

 DORF, Deutsche Bundesrepublik 



• WADDINGTON, C. H. D.Sc. Prof . — Inst, of Anim. Genet.. Kings Buildings. West 



Mains Rd., EDINBURGH 9. Scotland. U.K. 



a Study of certain features of developing embryos by electronmicroscopy. (Diptera; Amphi- 

 bia) (in collaboration with J. JACOB and Miss M. M. PERRY) 



b Development of imaginal buds. Drosophila spec. (Diptera) (in collaboration with Mrs. E. 

 ROBERTSON (PATON) ) 



c Ultrastructural changes during growth. Micrastecias thomasiana (Desmidioidea, Conjugates) 

 (in collaboration with Miss M. M. PERRY) 



d Electron microscope studies of mutants. Drosophila spec. (Diptera) (in collaboration with 

 Miss M. M. PERRY) 



e Types of RNA synthesized in early embryonic tissues. (Amphibia) (in collaboration with 

 Mrs. E. PERKOWSKA (MOSER) ) 



• WAELSCH. Mrs. S. GLUECKSOHN Ph.D.. Prof. — Dept. of Genet., Albert Einstein 



Coll. of Med.. Yeshiva Univ.. Eastchester Rd. and Morris Park Ave.. BRONX. N.Y. 

 10461. U.S.A. 



a Developmental physiology. Mus musculus (Rodentia) 



h Developmental genetics. Mus musculus (Rodentia) 



c Developmental pathology. Mus musculus (Rodentia) 



WAIDYASEKERA. P. L. D. Ph.D. — Dept. of Biol.Sci., Fac. of Sci.. Vidyodaya Univ. of 

 Ceylon. Gangodawila. NUGEGODA. Ceylon 



a Morphogenetic changes due to various bacterial types used as food during the sub- 

 cultures. Acanthamoeba spec. (Amoebina) 



WAL, U. P. van der M.Sc. — Zool. Lab.. State Univ. of Utrecht. Janskerkhof 3. UTRECHT. 

 Netherlands 



WALASH, M. N. B.Sc. — Dept. of Zool., Fac. of Sci.. Ain Shams Univ., Abassia, CAIRO 

 Egypt 



WALKER, B. E. Ph.D., Prof. — Dept. of Anat.. Med. Branch. Univ. of Texas. GAL- 

 VESTON, Tex., U.S.A. 



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