a Chromosome cycles in amphigonic and pseudogamous biotypes: determinism of pseudo- 

 gamy and polyploidy. (Tricladidea, Turbellaria) «,«« 

 BENAZZI, M. Prof. — 1st. di Zool. e Anat. Comp. dell'Univ., Via A. Volta 4, 56100 PISA, 



a Asexual reproduction, pseudogamy, polyploidy and heredity. (Tricladidea, Turbellaria) 

 BENDER, H. A. Ph.D., Prof. — Dept. of Biol., Univ. of Notre Dame, NOTRE DAME, Ind. 



" 46556,' U.S.A. 

 a Phenogenetic studies of the ovarian tissue of female-sterile mutants. Drosophila melano- 



gaster (Diptera) 

 b Physiological genetics. Drosophila melanog aster (Diptera) 

 c Genetics. Coelopa frigida (Diptera) 

 BENESCH, R. Dr.rer.nat. — I. Zool. Inst., Friedrich-Alexander Univ., Universitatsstr. iy, 



" 852 ERLANGEN, W.Germany 

 a Development. Triops cancciformis (Notostraca, Crustacea) 

 BENIRSCHKE, K. M.D., Prof. — Dept. of Obstet. and Gynecol., Univ. of California San 



" Diego, LA JOLLA, Calif. 92037, U.S.A. 

 BENNETT, D. Dr., Prof. — Dept. of Anat., Med. Coll., Cornell Univ., 1300 York Ave., NEW 



" YORK.N.Y. 10021, U.S.A. 

 a Effects of mutant genes on embryonic development. Mus musculus (Rodentia) 

 b Cell surface antigens in spermatogenesis and embryonic development. Mus musculus (Ro- 



BENOIT, J. A. A. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle 



Gabrielle, 94 NOGENT-sur-MARNE, France • 



a Etude in vitro de l'embryon. Mus musculus (Rodentia) 

 b Etude experimentale in vitro de la gastrula. Mus musculus (Rodentia) ■ 

 BENTYN K. M.D. — Lab. of Embryol., Dept. of Obstet. and Gynecol. II, Med. School, 



" ul.Karowa 2, WARSZAWA 40, Poland 

 a Nutrition mechanisms of preimplantation stages; the concentration of free amino acids in 



uterine secretion, blastocyst fluid, and blood serum; effect of steroid hormones on bio- 

 chemical composition of uterine secretion. Rattus spec. (Rodentia), Oryctolagus cuniculus 



(Lagomorpha) 

 BENZIE (BURROWS), Mrs. V. L. Dr.phil. — Dept. of Zool., Univ. of Canterbury, Private 



Bag, CHRISTCHURCH, New Zealand 

 a Descriptive embryology. Galaxias spp. (Teleostei) 

 BENZO C A. Ph.D. — Dept. of Anat., Upstate Med. Centre, State Univ. of New York, 766 



Irving Ave., SYRACUSE, N.Y. 13210 U.S.A. 

 a Development and control of glycogen metabolism in embryonic and neonatal liver. Callus 



domesticus (Aves) 

 b The role of hormones in the ultrastructural and biochemical development of embryonic liver 



in organ culture. Gallus domesticus (Aves) 

 BER A M D., M.V.D., Prof. — Endocrinol. Unit of the Rogoff- Wellcome Med. Research Inst, 



Beilinson Hosp., PETAH-TIKVA, Israel 

 a Development of eye reaction to vitamin Bl. Hyla spec, Bufo spec, Pelobates spec. (Anura) 

 b Histone content of developing ovaries. Bos taurus (Artiodactyla) 

 BEREITER-HAHN, J. Dr.phil.nat. — Inst, fur Kinemat. Zellforsch. der Univ., Senckenberg- 



anlage 27, 6000 FRANKFURT/M., W.Germany 

 a Variation of dry mass/water ratio in different parts of the egg from fertilization through 



first cleavage (interference microscopy). Psammechinus miliaris (Echinoidea) 

 b Electron microscopy of pigment granule formation in melanophores. Pterophyllum scalare 



(Cichlidae) , Lebistes reticulatus (Poeciliidae, Teleostei) 

 c Hormonal induction of keratinization in epidermal cells in tissues culture (time-lapse 



cinemicrography, histochemistry, electron microscopy). Same species as b 

 d Effects of cytochalasin B on motility and structure of tonofilaments in epidermal cells in 



tissue culture. Same species as b 

 BERENDES, H. D. Dr., Prof. — Zool. Lab., Dept. of Cell Biol., Univ. van Nijmegen, Drie- 



huizerweg 200, NIJMEGEN, Netherlands • 



a Induction and repression of puff activity in polytene chromosomes. Drosophila spp. (Dip- 

 tera) 

 b Gene function and differentiation in salivary gland cells. Dcosophila spp. (Diptera) 

 c Hormonal regulation of postembryonic development. (Diptera) 

 BERENDSEN, W. Ph.D. — Biol. Ultrastruct. Res. Unit, State Univ. of Utrecht, Sorbonne- 



laan 4, Universiteitscentrum "De Uithof", UTRECHT, Netherlands 

 BERESFORD, W. A. D.Phil., Prof. — Dept. of Anat., Med. Center, West Virginia Univ., 



MORGANTOWN, WVa. 26506, U.S.A. 

 a The influence of hypervitaminosis A on the developing temporo-mandibular joint. Rattus 



norvegicus (Rodentia) 

 b Fracture healing in the os priapi and mandible, and its response to castration or the 



administration of anabolic androgenic hormone. Same species as a 

 BERG W. E. Ph.D., Prof. — Dept. of Zool., Univ. of California, BERKELEY, Calif. 94720, 



U.S.A. • 



18 



