VANDEBROEK, G. Dr.Sc, M.I. I.E., Prof. — Lab. d'Embryol., Inst, de Zool.. 



Univ. de Louvain, 59 Rue de Namur, LOUVAIN, Belgique 

 VANDERBERG, J. P. B.S.. Ph.D. — Dept. of Biol., Johns Hopkins Univ., 



Charles and 34th Sts., BALTIMORE 18. Md., U.S.A. 



a. Endocrine control of vitellogenesis. Rhodnius prolixus (Triatomidae, 

 Hemiptera) 



b. Chromosomal differentiation during development. Chironomus thummi 

 (Dipt era) 



VANDERHAEGHE (HOUGARDY). Mrs. F. Dr.en Sci. — Lab. de Mor- 

 phol.anim.. Univ. libre de Bruxelles, 1850 Chaussee de Wavre, BRUXEL- 

 LES-Auderghem, Belgique 

 a. Nucleo-cytoplasmie relations in normal and tumour (Ascites) cells. 



VANNINI, E. Dr.. M.I.I.E., Prof. — 1st. di Zool.. Via S. Giacomo 9, BO- 

 LOGNA, Italia 



a. Experimental analysis of the development of the gonad and Bidder's 

 organ. Bufo spec. (Amphibia) 



b. Sexual and asexual reproductive cycles and regeneration. Salmacina in- 

 crustans, S. dysteri (Polychaeta) 



c. General study of the problem of the "sex gradient" in various herma- 

 phrodite animals. (Hydroidea; Tricladidea, Turbellaria; Serpulidae, Poly- 

 chaeta) 



VAUPEL, M. R. A.B., Ph.D. — Dept. of Anat., Tulane Univ., NEW OR- 

 LEANS 18, La., U.S.A. 



a. Experimental production of congenital anomalies. Rattus norvegicus albi- 

 nus (Rodentia) 



b. Anatomy and physiology of central nervous system anomalies. Homo sa- 

 piens (Mammalia) 



c. Microscopic anatomy of the reproductive system. Oedipus oedipidomus 

 (Hapalidae, Primates) 



VENEZIANO. P. P. M.S., Ph.D. — Dept. of Biol.. Illinois Inst, of Technol.. 

 CHICAGO 16, 111., U.S.A. 



a. Alpha-lipoic acid as a growth factor in embryos. Gallus domesticus (Aves) 



b. The effects of magnetic forces on embryogenesis. Gallus domesticus 

 (Aves) 



c. The effect of acriflavin on development of the neural tube. Gallus domes- 

 ticus (Aves) 



d. The effects of low intensity magnetostatic fields on growth. Gallus do- 

 mesticus (Aves) 



e. The action of specific antibodies on growth. Gallus domesticus (Aves) 

 VENZKE, W. G. D.V.M., M.Sc. Ph.D. — Dept. ofVeter. Anat., Ohio State 



Univ., 1900 Coffey Road, COLUMBUS 10, Ohio, U.S.A. 



a. Morphogenesis and physiology of pineal gland. (Aves) 



b. Morphogenesis and physiology of blood. (Aves) 



c. Experimental morphology of pineal gland. (Bovidae, Mammalia) 

 VERDONK, N. H. M.Sc — Zool. Lab., State Univ. of Utrecht, Janskerk- 



hof 3, UTRECHT, Netherlands 



a. Cell-lineage and head-pattern in normal and Li-treated embryos. Limnaea 

 stagnalis (Gastropoda) 



b. Cell-lineage and head-pattern in heat-shock treated embryos. Limnaea 

 stagnalis (Gastropoda) 



169 



