VAN HORN (NEUMANN), Mrs. S. A. Ph.D.. Prof. — Dept. of Zool.-Entomol.. Montana 



State Univ., BOZEMAN, Montana 59715, U.S.A. 

 a Maternal environmental inter-relationships with embryonic developmental rate. Aulocara 



elliotti (Orthoptera) 

 b Embryonic neuroendocrine functions. Aulocara elliotti (Orthoptera) 

 VANNINI. E. Dr., Prof. — Inst, of Zool., Fac. of Sci., Univ. of Bologna. Via S. Giacomo 



9, 40126 BOLOGNA, Italy 

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



(Anura) 

 b Inhibition by antibiotics of testosterone-induced sex-reversal in tadpoles. Rana dalmatina 



(Anura) 

 c General study of the problem of the "sex gradient" in various hermaphrodite animals. 



(Hydroidea; Tricladidea, Turbellaria; Serpulidae, Polychaeta) 

 VAN STONE. J. M. Ph.D., Prof. — Dept. of Biol., Trinity Coll., HARTFORD. Conn. 



06106, U.S.A. 

 a The influence of thyroxine upon the regenerative capacity of the tadpole hindlimb. Rana 



sylvatica (Anura) 

 VAN VALEN, Mrs. Ph. — Dept. of Biol. Sci., Univ. of Illinois at Chicago Circle, Box 4348, 



CHICAGO, 111. 60680, U.S.A. 

 VANZULLI, Mrs. A. B.Sc. — Sect, of Exper. Neurol., Inst, of Neurol., Hosp. de Clinicas, 



MONTEVIDEO, Uruguay 

 a Sensory evoked potentials in the fetus. Homo sapiens (Primates) 

 VARMA, H. C. Ph.D., Prof. — Dept. of Anat., Motilal Nehru Med. Coll., ALLAHABAD- 1, 



India 

 a Structure and composition of the amnion, including its histochemistry and ultrastructure. 



Rattus norvegicus (Rodentia), Lepus cuniculus (Lagomorpha) 

 h Mechanism of transport of substances across the chorio-amnion. Rattus norvegicus 



(Rodentia), Lepus cuniculus (Lagomorpha) 

 c Role of endometrium and extraplacental membranes in feto-matemal exchange processes. 



Homo sapiens (Primates) (in collaboration with Miss R. BAJEVA) 

 d Histochemical and cytochemical studies of the decidua parietalis and capsularis. Homo 



sapiens (Primates) 

 e Blood vessels of fetal placenta in cases of toxemias of pregnancy, congenital malformations 



and multiple births. Homo sapiens (Primates) 

 VARMA, R. M.Sc. — Dept. of Biochem., Fac. of Sci., Allahabad Univ., ALLAHABAD-2, 



India 

 a Quantitative studies of various metabolites in eggs, e.g. nitrogenous compounds, phos- 

 phorus compounds, reducing substances and citric acid. Philosamia ricini ( Lepidoptera) , 



Musca domestica. Sarcophaga ruficocnis (Diptera) (in collaboration with Mrs. R. PANT 



and D. M. LAL) 

 b Variation in the activity of some enzymes in eggs. Philosamia ricini (Lepidoptera). Musca 



domestica, Sarcophaga ruficornis (Diptera) (in collaboration with Mrs. R. PANT and 



D. M. LAL) 

 c Quantitative studies of various metabolites during metamorphosis. Philosamia ricini (Lepi- 

 doptera), Musca nebulo. Sarcophaga ruficornis (Diptera) (in collaboration with Mrs. R. 



PANT, D. M. LAL and Miss I. D. MORRIS) 

 d Quantitative studies of certain metabolites and enzymic studies on the fat body during 



larval and pupal development. Philosamia ricini (Lepidoptera) (in collaboration with Mrs. 



R. PANT, Miss I. D. MORRIS and D. M. LAL) 

 VARMA, Miss S. K. M.Sc. — Dept. of Zool., Univ. of Udaipur, UDAIPUR, Rajasthan, 



India 

 VARON, S. S. M.D.. Prof. — Dept. of Biol.. Univ. of CaUfomia. San Diego, P.O. Box 109, 



LA JOLLA. Calif. 92037. U.S.A. 

 a In vitro differentiation of nerve tissue 

 VASSE, J. Lic.es Sci. — Serv. d'Embryol. Exper. de I'lnst. Pasteur, 20 rue des Moulins, 



95 SANNOIS, France 

 a Researches on the relationship between the somites and the primordia of the forelimbs. 



Anguis fragilis (Lacertilia) 

 h Research on RNA and DNA synthesis of epidermal and mesodermal cells in the limb buds. 



Anguis fragilis, Lacerta viridis (Lacertilia) (in collaboration with A. RAYNAUD) 

 VASSETZKY, S. G. Cand.Biol.Sci — Inst, of Develop. Biol.. Acad, of Sci. of the U.S.S.R.. 



Vavilov St. 26. MOSCOW B-133, U.S.S.R. 

 a Dynamics of meiosis and mitosis in eggs. Os^rea gigas (Lamellibranchia), Strong ylocentro- 



tus drobachiensis, S. intermedius (Echinoidea) 

 h Production of diploid gynogenesis by means of heat treatment of oocytes at the first 

 maturation division and of chemical treatment (with nitrogen mustard) of sperm. Acipenser 



gilldenstadti, A. stellatus (Chondrostei) 

 VAUGHN, J. E. Ph.D. — Dept. of Anat.. School of Med.. Boston Univ.. 80 E. Concord 

 St., BOSTON. Mass. 02118, U.S.A. 



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