Hir 45 Holmg 



HIRATA, A. A. A.B., M.S. (Duke Univ.) — Dept of Zool., Univ. of Calif., 



LOS ANGELES 24. Cal., U.S.A. 

 a. Stability of cellular particulates in developing tissues and in neoplasms. 



(Aves and Mammalia) (in collaboration with A. M. SCHECHTMAN) 

 HISHIDA, T. M.A. (Rigakushi) — Biol. Inst., Fac. of Sci.. Nagoya Univ.. 



Chigusa-Ku, NAGOYA, Japan 



a. Metabolic analysis of early development. Oryzias latipes (Teleostei) (in 

 collaboration with E. NAKANO) 



b. Melanin formation in color phenotypes. Oryzias latipes (Teleostei) (in 

 collaboration with T. YAMAMOTO) 



HJELMMAN, G. M.D.. Prof. — Dept of Anat., Fac. de Med., Univ. of 



Helsinki, HELSINKI, Finland 



(no data received on Nov. 1"', 1953) 

 HOFF-JORGENSEN, E. Dr. Phil. — Inst, of Biochem., Fac. of Med.. 



Univ. of Copenhagen, Juliane Mariesvej 30, COPENHAGEN 0, Den- 

 mark 

 a. Determination of desoxyribonucleic acid in eggs and embryos, evidence 



of cytoplasmic desoxyribosides. (Amphibia) (in collaboration with E. 



ZEUTHEN) 

 HOFFMAN, H. A.B.. M.S. — Dept of Zool., Univ. of Cahfornia, LOS 



ANGELES 24, Cal., U.S.A. 



(no data received on Nov. 1^', 1953) 

 HOGEWONING, C. H. — Lab. for Exper. Histol., Fac. of Med., Univ. 



of Leyden, Wassenaarseweg, Boerhaavekwartier, LEIDEN, Holland 



a. Influence of estrogens on the development and calcification of embryonic 

 endosteal tissue in vitro. Gallus domesticus (Aves) 



b. Influence of vitamine D3 on the development and calcification of en- 

 dosteal bone and cartilage in vitro. Gallus domesticus (Aves) 



HOGUE, Miss M. J. A.B., Ph.D., Assoc. Prof. — Dept of Anat., School 



of Med., Univ. of Pennsylvania, PHILADELPHIA 4, Pa, U.S.A. 

 a. Study of neurons and glia cells from the different parts of the brain, 



especially from the cerebellum of human fetuses, newborn babes and 



adult humans. Homo sapiens (Primates) 

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

 a. Experimental investigation of the embryo (determination, prospective 



significance of embryonic areas). (Araneae, Arachnoidea) 

 HOLMDAHL, D. E. F.I. I.E., Med.Dr. Prof. — Anat. Inst., Univ. Uppsala. 



UPPSALA, Sweden 



a. Untersuchungen iiber die friihe Korperentwicklung. (Vertebrata) 



b. Riickenmarkentwicklung. (Vertebrata) 



c. Neuralleistenentwicklung und Mesenchymbildung. (Vertebrata) 



d. Entwicklung der Blutgefasse und des Blutes. (Vertebrata) 



e. Spina Bifida-Genese. (Vertebrata) 



f. Teratomgenese. (Vertebrata) 



g. Probleme der Korperentwicklung. (Amniota) 



h. Morphogenese des Plexus chorioideus. (Vertebrata) 

 HOLMGREN, N. F. Dr Sc, Prof. (Emer.) — Zootom. Inst.. Univ. of 

 Stockholm, 116 Drottninggatan, STOCKHOLM, Sweden 



a. Origin of tetrapods; the limb problem. (Tetrapoda) 



b. The wing problem. (Aves) 



