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



LONDON WCIE 6BT, England 

 a Cellular interaction in tissue culture 



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

 HEESEN, D. te; Dipl.-Biol. - Emschergenossenschaft, Kronprinzenstr. 23, 41 ESSEN, B.R.D. 



(Germany) 

 a Dfvelopment of freshwater species as a test for pollution. (Teleostei) 

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



(Germany) 

 a Comparative embryology of coelom. Lanice conchilega (Polychaeta) 

 HEINE, H.; Dr.rer.nat.habil. - Zentr. der Morphol. (Dr. Senckenbergische Anat.) der Univ., Theodor- 



Stern-Kai 7, 6 FRANKFURT/M., B.R.D. (Germany) 

 a Proteoglycans of the cellular matrix in embryonic tissues, especially heart and vessels. 



(Mammalia) 

 HEIZMANN, C. W.: PJi.D. - Inst, of Cell Biol., Swiss Fed. Inst, of Technol., Honggerberg, 8049 



ZURICH, Switzerland 

 a Myofibrillar organellogenesis. Gallus domesticus (Aves), Rattus spec. (Rodentia) 

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



1918, 69621 VILLEURBANNE, France 

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



U.S.S.R. 

 a History of developmental biology in Russia and abroad 



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

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

 b RNA metabolism in newly activated puffs. Same species as a 



HEMMINGS, W. A.; D.Sch. ^ ZooL Dept., Univ. Coll. of N.Wales, BANGOR, Caerns., Wales, U.K. 

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



b Protein transport across the gut of the sucklina and mature animals. Rattus norvegicus (Rodentia) 

 HENDELBI;RG, J.; Fil.Dr. - ZooL Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden 

 HENGST, R. T. M.; Drs. - Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 8, "De Uithof, 



UTRECHT, Netherlands 

 a Establishment of bilateral symmetry in the unclcaved egg, studied by cytoplasm transplantation. 



Xenopus lacvis, Discoglossus pictus (Anura) 

 HENOU, Mrs. C; Dr.3c cycle - Lab. de Biol. Anim., Univ. de Clermont, B.P. 45, 63170 AUBIERE, 



France 

 a Action du herbicide paraquat sur I'cmbryon. (Aves) 

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



POl 2DY, England 

 a Gonadal cycle. Lacerta vivipara (Laccrtilia) 



b H3-thymidine studies of tiie developing neural crest Xenopus laevis (Anura) 

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



b 

 HERP, F. van; Ph.D. Dept. of Zool., Cathol. Univ., Toernooiveld, 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. Eriangen-Niirnberg, Universitiitsstr. 19, 852 ERLANGEN, 



B.R.D. (Germany) 

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

 HESS, O.; Dr.rer nat., Prof. ~ Inst, flir AUgem. Biol., Univ. Diisseldorf, Ulenbergstr. 127-129, 4000 



DOSSELDORF, B.R.D. (Germany) 

 a Experimental embryology. Bithynia tentaculata and other spp. (Gastropoda) 

 b Gene physiology, Y chromosome. Drosophila spp. (Diptera) 

 c Genetic regulation of differentiation; male germ line cells. Same species as b 

 HESZKY, L. E.; Dr. - Tissue Cult. Lab., Natl. Inst, of Agrobotany, 2766 TAPl6SZELE, Hungary 

 a Morphogenesis in callus and antiier cultures; tissue and embryo differentiation from somatic 



cells: Papilionaceae, Datura spec, Daucus spec, Oryza spec, and from haploid cells: Oryza spec, 



Zea mays, Hordeum spec, Triticum spec. (Angiospermae) 

 b Physiology of cell and tissue differentiation and somatic embryogenesis in callus cultures. 



Nicotiana tabacum, Daucus carota (Angiospermae) 

 HEWITT, W.; M.B., B.S. - Dept. of Anat., St. Thomas's Hosp. Med. School, LONDON SEl 7EH, 



England 

 a Development of the brain. Homo sapiens and other spp. (Mammalia) 

 HIMELSTEIN-BRAW, Mrs. R.; M.Sc - Finsen Lab., Finsen Inst., 49 Strandboulevarden, 2100 



COPENHAGEN (?, Denmark 

 a Follicle growth and atresia in the immature ovary. Homo sapiens (Primates) 

 b Effect of irradiation of the neonatal thymus on development of the ovary. Mus musculus 



(Rodentia) 

 HINCHLIFFE, J. R.; Ph.D. - Zool. Dept., Univ. Coll. of Wales, Penglais, ABERYSTWYTH 



SY23 3DA, Wales, U.K. 

 a Contribution of cell death to genesis of form in the limb: suppression and extension of necrosis 



in talpid3 and wingless mutants. Gallus domesticus (Aves) 

 b Autoradiography (35S04 uptake) of emergence of chondrogenic pattern in the limb, and its 



significance for the evolution of lungfish paddle into amphibian limb. Ambystoma mexicanum 



(Urodela), Gallus domesticus (Aves) 



47 



