ZACCANTI, F.; Dr., Prof. Inst, of Zool., Univ. of Bologna, Via S. Giacomo 9, 40126 BOLONGA, 



Italy 

 a Hormonic regulation of ovarian and Bidder's organ oogenesis. Bufo bufo (Anura) 

 b Effect of steroids on sex differentiation (autoradiography). Rana dalmatina, R. latastei. 



R. esculenta, Bufo bufo (Anura) 

 ZACCHEI, Ms. A. M. - 1st. di Anat. Comp., Univ. di Roma, Via A. Borelli 50, 00161 ROMA, Italy 

 a Retinal and neural structures in vitro. GaUus domesticus (Aves), Mus musculus (Rodentia) 

 b In vitro studies of relations between nervous and muscle cells 

 ZACCONE, G.; Dr., Prof. - Inst, of Zool. and Comp. Anat., Univ. of Messina, Via dei Verdi 75, 98100 



MESSINA, Italy 

 a Histochemical distribution of the enzymes of carbohydrate metaboUsm in the Golgi zones of 



yolk globules. Aplysia depilans (Gastropoda) 

 ZAFIRATOS, C; Dr.Sci. - Lab. of Zool., Univ. of Athens, Panepistimiopolis (Kouponia), 621 



ATHENS, Greece 

 ZAHLAVA, J.; MUDr., CSc. - Inst, of Pathophysiol., Charles Univ., Lidicka 1, 306 05 PLZEN, 



Czechoslovakia 

 a Developmental changes in the connections between medial geniculate body and homo- or 



contralateral cortical auditory areas in the gyrus ectosylvius anterior and medius. Canis familiaris 



(Carnivora) . 



b The different influences of GABA (7-aminobutyric acid) and some convulsants on the cortical 



auditory responses evoked by acoustic or by electrical stimulation of subcortical structures 



during postnatal development. Same species as a 

 ZAITZEV A. v.; Cand.biol.sci. - A. N. Severtzov Inst, of Evol. Morphol. and Ecol. of Animals, Acad. 



of Sci. of the USSR, Lenin Ave. 33, MOSCOW 117071, U.S.S.R. 

 a Specificity of spermatogenesis and oogenesis. Esox lucius (Teleostei) 

 b Spermatogenesis and oogenesis in different temperature, ecological, and seasonal conditions. 



various spp. (Teleostei) ,^ , , 



ZANTINGE, A.; Drs. - Dept. of Developm. Plant Biol., State Univ. of Gronmgen, Biol. Ctr., Kerklaan 



30, HAREN (Gr.), Netherlands 

 a Genome activity during development. Schizophyllum commune (Basidiomycetes, Fungi) 

 ZEILMAKER, G. H.; Ph.D. - Dept. of Endocrinol., Growth, and Reprod., Erasmus Univ., 



P.O.B.1738, ROTTERDAM, Netherlands 

 a Egg transplantation. Mus musculus (Rodentia)) 



b Development of ectopic trophoblast. Rattus norvegicus, Mus musculus (Rodentia) 

 c Energy requirements and fertility of matured oocyte. Same species as a 

 d Deep-frozen preservation of embryos and subsequent development. Same species as a 

 e Maturation and fertilization of oocytes in vitro. Homo sapiens (Primates) 

 ZENZES, Ms. M. T.; Dr. - Inst, fiir Humangenet. und Anthropol. der Univ., Albertstr. 1 1, 7800 



FREIBURG, B.R.D. (Germany) 

 a Sex determination and differentiation. (Mammalia) 

 ZERBIB, C. - Lab. Sex, et Reprod. des Invertebr., Univ. Paris VI (P. et M. Curie), Bat.A, 7e etage, 4 



place Jussieu, 75230 PARIS Cedex 05, France 

 a Oogenesis, vitellogenesis and fertilization. Orchestia gammarellus (Amphipoda, Crustacea) 

 ZILCH, R. - I.ZooL Inst, der Univ. Erlangen-Niirnberg, Universitiitsstr. 19, 852 ERLANGEN, B.R.D. 



(Germany) 

 a Comparative embryology. Diastylis rathkei (Cumacea), Penaeus trisulcatus, Atyaephyra 



desmaresti (Decapoda) and other Malacostraca (Crustacea) 

 ZILLER (SENGEL), Ms. C; D.Sc. - Inst. d'EmbryoL du C.N.R.S. et du Coll. de France, 49bis av. de 



la Belle Gabrielle, 94130 NOGENT-sur-MARNE, France 

 a Development of neural crest cells (cell and tissue culture). Gallus gallus, Coturnix c. japonica 



(Aves) 

 ZISSLER,D.; Dr.rer.nat. - BioL Inst. I (Zool.) der Univ., Albertstr. 21a, 78 FREIBURG, B.R.D. 



(Germany) 

 a Ultrastructure of normal and UV-irradiated eggs and embryos. Smittia spec. (Chironomidae, 



Diptera) ^„ 



ZIVKOVK!:, Ms. N.: B.C. - Lab. of Molec. Biol, and Endocrinol., Inst, of Nucl. Sci. "Boris Kidric , 



P.O.Box 522, 11001 BEOGRAD, Yugoslavia 

 2nIDARI(!: (OON(^), Ms. D.; Dr.biol. - Dept. of Zool., Univ. of Zagreb, Rooseveltov trg 6, 41000 



ZAGREB, Yugoslavia 

 ZONNEVELD, B. J. M.; Drs. Dept. of Genet., Univ. of Leiden, Kaiserstr. 63, LEIDEN, Netherlands 

 a Developmental genetics of the fruiting bodies. Aspergillus nidulans (Ascomycetes) 

 ZOTIN A. I.; Dr.Biol., Prof. - Lab. of Devi. Biophys., Inst, of Devi. Biol., Acad, of Sci. of the USSR, 



Vavilov St. 26, MOSCOW 117334, U.S.S.R. 

 a Differential equations in developmental biology: 1. growth equations for determination of 



maximal possible age; 2. equation of differentiation: theoretical prerequisites. Homo sapiens and 



other spp. (Animalia) 

 ZUBOVA, Ms. S. E.; Cand.bioLsci. - Lab. of Exp. IchthyoL, Biol. Inst., Leningrad State Univ., Stary 



Peterhof, LENINGRAD 198904, U.S.S.R. 

 a Effect of X-irradiation on gametogenesis. (Chondrostei; Teleostei) 

 ZUCCATOSTA, A.; Dr. - 1st. e Lab. Antropol., Univ. di Camerino, Via Filippo Camerini 5, 62032 



CAMERINO, Italy 

 a Developmental pathology. Homo sapiens (Primates) 

 ZUSMAN, I. N.; Cand.bioLsci. - A. N. Severtzov Inst, of Evol. Morphol. and Ecol. of Animals, Acad. 



of Sci. of the USSR, Lenin Ave.33, MOSCOW 117071, U.S.S.R. 



112 



