HIRN, M. Dipl.d'Etud.Approf. — Lab. de Morphogenet. Anim., Fac. des Sci., Place Victor 



Hugo, 13 MARSEILLE 3, France 

 a Regeneration. Cercyra hastata (Turbellaria) 

 HISAOKA, K. K. Ph.D. — Natl. Inst, of Dent. Res., Natl. Inst, of Health, BETHES- 



DA, Md. 20014, U.S.A. 



(no embryological work in progress) 

 HISHIDA, T. D.Sc. — Biol. Inst., Fac. of Sci., Nagoya Univ., Chikusa-ku, NAGOYA. 



Japan i 



HOADLEY, L. Ph.D., Prof. (Emer.) — Biol. Labs., Harvard Univ., 16 Divinity Ave., I 



CAMBRIDGE, Mass. 02138, U.S.A. • i 



HOAR, R. M. Ph.D. — Teratol. Sect., Dept. of Exper. Pathol, and Toxicol., Research Div., 



Hoffman-La Roche Inc., NUTLEY, N.J. 07110, U.S.A. 

 a Studies on the relationship between hyperadrenal conditions and birth defects, in particular 



glucose-6-phosphate dehydrogenase in the spinal cord of developing embryos exposed to 



maternal hyperadrenocorticalism. Cavia porcellus (Rodenfia) 

 HOARAU, F. Dr.spec. — Lab. de Morphogenet. Anim., Fac. des Sci., 1 Place Victor Hugo, 



13 MARSEILLE 3, France 

 a Analyse des territoires de regeneration. Helleria brevicornis (Isopoda, Crustacea) 

 HOBBS, M. J. Ph.D. — Dept. of Anat., Univ. Coll., Gower St., LONEXDN W.C.I, England 

 a Differentiation in colonial forms. Pleodorina spp. (Voluocales, Chlorophyceae) 

 HOCKER, W. Dr.rer.nat. — Zool. Inst, der Univ., Weyertal 119, 5 KOLN-Lindenthal, 



W. Germany 

 a The effects of STH and LTH and of auxiliary hormones on the postembryonal growth. 



Columba pahimbus (Aves) 

 HOFMAN, Miss L. M.Sc. — Inst, of Biol., Univ. of Zagreb, Salata, ZAGREB, Yugoslavia 

 a Regulation of compensatory growth. Rattus norvegicus (Rodenfia) (in collaboration with 



M. MULLER) 

 HOFMANN, D. K. Dr.rer.nat. — Inst, fiir Entw. physiol., Univ. zu Koln, Gyrhofstr. 17, 



5 KOLN-Lindenthal, W.Germany 

 a Experimental studies on the endocrine control of caudal regeneration. Platynereis dumerilii 



(Polychaefa) 

 h Histological investigations on cranial and caudal regeneration. Eunice uiridis (Potychaeta) 

 c Neurosecretory phenomena in the central nervous system of specimens of different sexual 



development stage. Eunice viridis (Polychaeta) 

 HOGLUND, L. R. Fil.kand. — Dept. of Zoophysiol., Univ. of Umea, S 901 87 UMEA, 



Sweden 

 a Polysaccharide metabolism, especially glycoproteins and mucopolysaccharides. Rana spp. 



(Anura) 

 HOHL, H. R. Dr.sc.nat., Prof. — Dept. of Anat. and Cytol., Univ. of Zurich, Birchstr. 95, 



8050 ZURICH, Switzerland 

 a Submicroscopic morphogenesis. Dictyostelium discoideum and other spp. (Acrasiales) 

 h Submicroscopic morphogenesis. Phytophthora parasitica and other spp. (Phycomycetes) 

 HOLAK, H. — Dept. of Gen. Biol., Silesian Acad, of Med., K. Marksa 19, Rokitnica, 



ZABRZE 8, Poland 

 a Development of ultimobranchial body. (Amphibia) 

 HOLLAND, J. J. Ph.D., Prof. — Dept. of Biol., Univ. of California, San Diego, P.O. Box 



109, LA JOLLA, Calif. 92037, U.S.A. 

 a Action of viruses on development. (Mammalia) 

 h Translational factors in cellular differentiation. (Mammalia) 

 HOLLYFIELD, J. G. Ph.D. — Dept. of Ophthalmology, Coll. of Physicians and Surgeons. 



Columbia Univ., 630 W. 168th St., NEW YORK. N.Y. 10032, U.S.A. 

 a Retinal changes at metamorphosis. Rana pipiens, Xenopus laevis (Anura) 

 b Growth of the visual system. Xenopus laevis (Anura) 

 HOLM, K. A. Fil.Dr. — Zool. Inst., Univ. of Uppsala, Villavagen 9, UPPSALA, Sweden 

 a Experimental investigation of the embryo (determination, prospective significance of 



embryonic areas). (Araneae, Arachnoidea) 

 HOLSTEIN, A.-F. Dr.med. — Anat. Inst, der Univ. Hamburg, Martinistr. 52, 2-HAMBURG 



20, W. Germany 

 a Morphologische und Elektronenmikroskopische Untersuchungen zur Entwicklung der ab- 



leitenden Samenwege. Homo sapiens (Primates) 

 h Fluoreszenzmikroskopische Untersuchungen der Spermatozoen. Oryctolagus cuniculus 



(Lagomorpha) 

 c Entwicklung des Hodens. Homo sapiens (Primates) 



HOLTER, H. Ph.D. — Physiol. Dept., Carlsberg Lab., 10, Gl.Carlsbergvej, COPEN- 

 HAGEN, Valby, Denmark • 

 HOLTFRETER, J. K. F. Ph.D., Prof. — Dept. of Biol., Coll. of Arts and Sci., Univ. of 



Rochester, ROCHESTER, N.Y. 14627, U.S.A. 

 HOLTZER, H. Ph.D., Prof. — Dept. of Anat., School of Med., Univ. of Pennsylvania. 



PHILADELPHIA, Pa. 19104, U.S.A. 



78 



