a Wirkungsmechanismus von Schilddrusenhormonen. Salamandra spec, Triturus spec, Ambystoma 



spec. (Urodela) 

 b Epithelcysten. Same species as a 

 c Geweilibildung. Capreolus capreolus (Artiodactyla) 

 HA§EK, M. M.D. - Dept. of Exp. Biol, and Genet., Inst, of BioE, Czech. Acad, of Sci., Flemmingovo 



nam. 2, PRAHA 6, Czechoslovakia ISDB 



HATIER (AUTELIN), Mrs. R. Lic.es Sci. - Lab. de Biol. Med., Univ. de Nancy I, 30 rue Lionnois, 



54 NANCY, France 

 HAUENSCHILD, C. Dr.rer.nat., Prof. -- Zool. Inst, der Techn. Univ., Pockelsstr. 10a, 3300 



BRAUNSCHWEIG, B.R.D. (Germany) 

 a Reproduction, sex differentiation, endocrinology, and periodicity. Platynereis spec, Ophryo- 



trocha spec, and other spp. (Polychaeta) 

 HAUSER, R. F. Ph.D., Prof. - Div. of Cell and Developm. Biol., Zool. Inst., Univ. of Bern, Sahlist.8, 



3012 BERN, Switzerland 

 a The role of the subcommissural organ in normal development and regeneration of axial 



structures. Xenopus laevis (Anura), (Vertebrata) 

 b Regeneration of the spleen; effects of spleenectomy on blood formation and metamorphosis. 



Xenopus laevis (Anura) 

 HAY, Miss M. F. Ph.D. - A.R.C. Unit of Reprod. Physiol. & Biochem., Anim. Res. Station, 307 



Huntingdon Rd., CAMBRIDGE CB3 0JQ, England 

 a Relationship between embryo and corpus luteum. Ovis aries (Artiodactyla) 

 b Maturation of follicular oocytes in vitro. Ovis aries (Artiodactyla) 

 HEAYSMAN (WAKELING), Mrs. J. E. M. Ph.D. - Dept. of Zool., Univ. Coll. London, Gower St., 



LONDON WC1E 6BT, England 

 a Cellular interaction in tissue culture 



HEDLUND, K. O. Fil.kand. - Zool. Inst., Univ. of Uppsala, Box 561, 75122 UPPSALA 1, Sweden 

 a Ultrastructure of outgrowing nerve fibers in vitro and in vivo. Gallus domesticus (Aves), 



Ambystoma mexicanum (Urodela) 

 HEERSCHE, J. N. M. Dr. - Lab. for Cell Biol, and Histol., State Univ., Rijnsburgerweg 10, LEIDEN, 



Netherlands 

 a Fluctuation in cyclic-3'5'AMP levels in embryonic bone after prolonged exposure to 



parathyroid hormone (radioimmunoassay). Rattus spec, Mus musculus (Rodentia) 

 b Hormonal regulation of calcium transport in the shell gland. Gallus domesticus, Coturnix 



coturnix japonica (Aves) 

 HEESEN, D.te Dipl.-Biol. -- Zool. Inst, der Univ., Badestr. 9, 44 MUNSTER/Westf., B.R.D. 



(Germany) 

 a Yolk system, studied by electrophoresis, immunotests, radio-isotopes. Brachydanio rerio 



(Teleostei) 

 HEIZMANN, P. Dr.Ing. - Sect, de Biol. Gener. et Appl., Univ. de Lyon I, 43 Bd. du 11 Novembre 



1918, 69621 VILLEURBANNE, France 

 a Metabolisme des acides nucleiques. Euglena gracilis (Euglenophyceae) 

 HELFENBEIN, L. L. B.Sc - Dept. of Biol., Kharkov State Univ., Dzerjinsky Square 4, KHARKOV, 



U.S.S.R. 

 HELMSING, P. J. Dr. - Dept. of Genet., Univ. of Nijmegen, Toemooiveld, NIJMEGEN, Netherlands 

 a Changes in nuclear protein patterns related with gene activation. Drosophila hydei (Diptera) 

 b RNA metabolism in newly activated puffs. Drosophila hydei (Diptera) 



HEMMINGS W. A. D.Sc - Zool. Dept., Univ. Coll. of N.Wales, BANGOR, Caerns., Wales, U.K. 



ISDB 

 a Protein transport to the foetus. Oryctolagus cuniculus (Lagomorpha) 

 b Uterine secretion. Oryctolagus cuniculus (Lagomorpha) 



HENDELBERG, J. Fil.Dr. Zool. Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden 

 a Spermiogenesis. (Turbellaria, Trematoda, Cestoda) 

 b Alterations in the epidermal ultrastructure during early development. Stylostomum ellipse, 



Childia groenlandica, Paraphanostoma submaculatum and others (Turbellaria) 

 c The ultrastructure of the protonephridia during larval development. Diphyllobothrium den- 



driticum (Cestoda) 

 HERBERT, C. F. Ph.D. - Dept. of Biol. Sci., Portsmouth Polytechnic, Park Rd., PORTSMOUTH, 



England 

 a Development of the supraorbital glands. Pygoscelis adeliae (Aves) 

 b H 3 -thymidine studies of the developing neural crest. Xenopus laevis (Anura) 

 c Electron microscopy of the developing pituitary and median eminence in larvae. Same species as 



b 

 HERLANT (MEEWIS), Mrs. H. Dr., Prof. - Lab. de Biol. Anim. et Histol. Comp., Univ. Libre de 



BruxeUes, Av. F. D. Roosevelt 50, 1050 BRUXELLES, Belgium 

 HERNANDEZ (VERDUN), Mrs. D. F. Dr.3e Cycle - Lab. de Biol, de la Reprod., Univ. de Paris VI, 



B.P.261, 75827 PARIS-Cedex 17, France 

 a Ultrastructure and morphogenesis of the placental syncytium. Mus musculus (Rodentia) 

 HERP, F. van Ph.D. - Dept. of Zool., Cathol. Univ., Toemooiveld, NIJMEGEN, Netherlands 

 a Sensitivity of larval and juvenile stages to neurohumoral substances. (Decapoda, Crustacea) 

 b Development of the neurosecretory system. (Decapoda, Crustacea) 

 HERRMANN, K. - I. Zool. Inst, der Univ. Erlangen-Niimberg, Universitatsstr. 19, 852 ERLANGEN, 



B.R.D. (Germany) 

 a Experimental analysis of metamorphosis. Actinotrocha spec. (Phoronidea) 

 HESS, O. Dr.rer.nat., Prof. - Inst, fur Allgem. Biol., Univ. Dusseldorf, Ulenbergstr. 127-129, 4000 



45 



