Hil-Hor 



b. Stability of dissociated embryonic thyroid cells as measured by morpho- 

 logical and chemical criteria of differentiation. Gallus domesticus (Aves) 



c. Electron microscopy of differentiating thyroid cells. Gallus domesticus 

 (Aves) 



HILL. J. B. M.Sc. — Zool. Inst., Fac. of Sci., Univ. of Stellenbosch, STEL- 

 LENBOSCH. Republic of South Africa 



— Dept. of Zool., Univ. Coll. of Zululand, KWA-DLANGEZWA, Na- 

 tal, Republic of South Africa 

 a. Development of the genital system. Theba pisana (Pulmonata, Gastropoda) 

 HINCHLIFFE, J. R. B.A. — Wye Coll., Near ASHFORD, Kent, England 

 HINRICHSEN, K. Dr.med. — Anat. Inst, der Univ., Kreuzbergring 36, 

 G5TTINGEN, Deutsche Bundesrepublik 



a. Autoradiographische Untersuchungen zur Lymphopoese. Mus musculus 

 (Rodentia) 



b. Histochemie der histogenetischen Differenzierung. Mus musculus (Ro- 

 dentia), Oryctolagus cuniculus ( ' Lagomorpha) 



HINTON, H. E. Ph.D., F.R.S. — Dept. of Zool., Univ. of Bristol, BRISTOL 



8, England 

 HINTZSCHE, E. Dr.med., Prof. — Anat. Inst, der Univ., Buhlstr. 26, BERN, 



Schweiz 



(no embryological work in progress) 

 HIRAIWA, Y. K. D.Sc, Prof. — Seinan Gakuin Univ., FUKUOKA, Japan 

 HIRAMOTO, Y. D.Sc, M.I.I.E. — Misaki Marine Biol. Station, Univ. of 



Tokyo, MISAKI, Kanagawa-ken, Japan 



a. Cell division. (Echinoidea) 



b. Physical properties of marine eggs. (Echinoidea) 



c. Physiological studies on fertilization. (Echinoidea) 



HISAOKA, K. K. B.Sc, M.Sc, Ph.D., Prof. — Dept. of Biol., Loyola Univ., 

 6525 Sheridan Rd., CHICAGO 26, 111., U.S.A. 



a. A histochemical study of developing oocytes. Trichogaster trichopterus 

 (Teleostei) 



b. Further histochemical studies of developing oocytes and embryos. Bra- 

 chydanio rerio (Teleostei) 



c An electron microscopic study of the oocyte. Brachydanio rerio (Tele- 

 ostei) 



d. A study of nucleic acid metabolism in developing oocytes and embryos 

 with the aid of tritiated precursors and radioautographic methods. Brachy- 

 danio rerio (Teleostei) 



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

 NAGOYA, Japan 



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



b. Physiological study of sex differentiation. Oryzias latipes (Teleostei) 

 HITZEMAN, Sister J. W. Ph.D. — Div. of Nat. Sci., Siena Heights Coll., 



ADRIAN, Mich., U.S.A. 

 a. Distribution and activity of enzymes associated with metabolism and ste- 

 roidogenesis in the Leydig cells of the testis prior to 30 days postpartum. 

 Mus musculus (Rodentia) 



HJELMMAN, G. Prof. — Dept. of Anat., Univ. of Helsinki, HELSINKI, 

 Finland (no embryological work in progress) 



HOADLEY, L. A.B., A.M.(Hons.), Ph.D., M.I.I.E., Prof. ( Emer. ) — Biol. 

 Lab., Harvard Univ., Divinity Ave., CAMBRIDGE 38, Mass., U.S.A. 



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