HASSONA, A. A. S.; B.Sc. - Dept. of Zool., Fac. of Sci., Alexandria Univ., Moharram Bey, ALEX- 

 ANDRIA, Egypt 

 a Experiments on determination of the proximo-distal axis of the developing hind limb. Bufo 



regularis (Anura) (with M. I. MICHAEL, S. N. SEDRA and S. H. KHALIL) 

 HASWELL, Ms. P.; M.Sc. - Dept. of Zool., Washington State Univ., PULLMAN, WA 99163, USA 

 a Biochemical differentiation of mammary epitheUal cells in culture: normal preneoplastic and 



tumor cells. Mus musculus (Rodentia) 

 HAY, D. M.; Ch.B., Prof. - Div. of Obstet. & Gynecol., Health Sci. Ctr., Univ. of Calgary, CALGARY, 



Alta. T2N 1N4, Canada 

 a Ante-natal monitoring of the fetus. Homo sapiens (Primates) 



b Alpha-fetoprotein in pregnancy. Rattus spec, Ovis aries, Macaca mulatta, Homo sapiens (Mam- 

 malia) 

 c Beta-cortisol in pregnancy. Macaca mulatta. Homo sapiens (Primates) 

 HAY, Ms. E. D.; M.D., Prof. - Dept. of Anat., Harvard Med. School, 25 Shattuck St., BOSTON, 



MA 02115, USA 

 a Localization of regeneration cells. Planaria spec. (Turbellaria), Triturus viridescens (Urodela) 

 b Fine structure of the developing cornea, and locaUzation and identification of proteins secreted 



by the epithelium (autoradiography and chromatography). GaUus domesticus (Aves) 

 c Migration of corneal endothelium and mesenchymal cells; role of glycosaminoglycans in cell 



migration and development. Same species as b 

 d Secretion of collagen by neural tube and other embryonic epithelia; its role in tissue interaction. 



Same species as b 

 HAY, R. J.; Ph.D. - CeU Cult. Dept., Amer. Type Culture CoUection, 12301 Parklawn Drive, ROCK- 



VILLE, MD 20852, USA 

 a Lung, myelogenous and pancreatic cell cultures for studies of differentiation, physiology, and 



senescence. (Mammalia) 

 HAYASHI, Y.; M.D. - Dept. of Developm. Pathol., Res. Inst, of Environm. Med., Nagoya Univ., 



Furo-cho, Chikusa-ku, NAGOYA, 464 Japan 

 a Electron microscopy of experimentally induced malformations of the central nervous system. 



Mus musculus, Rattus norvegicus (Rodentia) 

 b Effects of low-dose x-irradiation upon the developing brain. Mus musculus (Rodentia) (with 



Y. KAMEYAMA and K. HOSHINO) 

 HEATH, H. D.; Ph.D., Prof. - Dept. of Biol. Sci., CaUf. State Univ., HAYWARD, CA 94542, USA 

 a Growth regulation in larvae. Taricha torosa (Urodela) 

 b Tentacle regeneration. Hydra littoraUs, Chlorohydra viridissinia (Hydrozoa) 

 HEIM, W. G.; Ph.D., Prof. - Dept. of Biol., Colorado CoU., COLORADO SPRINGS. CO 80903, USA 

 a Neurotrophic effects in limb regeneration. Xcnopus laevis (Anura) 

 b Genetic control of longevity. Drosophila spp. (Diptera) 

 c Biochemistry of early development. Oryzias latipes (Teleostei) 

 HEIN, Ms. R. R.; Ph.D., Prof. - Div. of Nat. Sci. and Mathem., St. Mary's Coll. of Maryland, ST. MA- 



RY-City,MD 20686, USA 

 a Effect of chemical agents (usually metals) on development, and possible correlation with the 



effect of selected enzyme systems present in developing and regenerating tissues. Dugesia doroto- 



cephala (Turbellaria), (Echinodermata) 

 HEMING, B. S.; Ph.D., Assoc. Prof. -Dept.of En tomoL, Univ. of Alberta, EDMONTON, Alta. T6G 2E3, 



Canada 

 a Metamorphosis. Frankliniella fusca, Haplothrips verbasci and other spp. (Thysanoptera) 

 b Embryogenesis. Haplothrips verbasci (Thysanoptera) 

 c Late embryogenesis: sense organs. Lytta viridana (Meloidae, Coleoptera) 

 d Embryogenesis, especially mouth part development. Macrosteles fascifrons (Homoptera) 

 HENDRICKX, A. G.; Ph.D. - Cahf. Primate Res. Ctr., Univ. of CaUfomia, DAVIS, CA 95616, USA 

 a Temporal and endocrine relationships of ovulation, fertilization, and early embryonic develop- 

 ment. Macaca mulatta, M. radiata, Papio cynocephalus (Primates) 

 b Teratogenic effects of corticosteroids (triamcinolone) on development of skull, lymphoid and 



nervous systems. Same species as a 

 c Teratogenic and embryotoxic effects of contraceptives (Norlestrin: Norethindrone acetate and 



ethinyl estradiol). Macaca mulatta, M. radiata (Primates) 

 d Cellular kinetics of the central nervous system of early embryos by means of autoradiography. 



Macaca mulatta (Primates) 

 e Teratogenic effects of tritiated water on gonadal development. Macaca radiata (Primates) 

 HENNEN, Ms. S.; Ph.D., Assoc. Prof. - Dept. of Biol., Marquette Univ., 530 North 15th St., MIL- 

 WAUKEE, WI 53233, USA 

 a Nuclco-cytoplasmic interactions in development. (Amphibia) 

 b Localization of rDNA sequences in chromosomes. (Amphibia) 

 HI'RKOVITS, J.; M.D. - Inst, de Biol. Celular, Fac. de Med., Univ. de Buenos Aires, Paraguay 2155 



2°piso, 1 121 BUENOS AIRES, Argentina 

 a Morphogenesis in early development: normal and experimental conditions. Bufo arenarum, 



Xenopus laevis (Anura) 

 Hl'RNANDIZ de BARRIOS, Ms. C. E.; M.D., Assoc. Prof. - Cat. de Embriol., Fac. de Med., Univ. 



de Los Andes, Apartado 38, MERIDA, Venezuela 

 a Histochemistry of the developing placenta. Homo sapiens (Primates) 

 b Anomalies of the nasal cavity. Same species as a 

 c Importance of several phenomena and processes which produce symmetrical body conditions 



or interfere with them. Same species as a 



38 



