a Physiology of fertilization and artificial parthenogenesis. Hemicentrotus pulcherrimus, Pseudo- 



centrotus depressus (Echinoidea) 

 b Metamorphosis. Halocynthia roretzi, Chelyosoma siboya, Ciona intestinalis (Tunicata) 

 ISHIKAWA, T.; D.V.M., Prof. - Dept. of Vet. Obstet., Fac. of Vet. Med., Hokkaido Univ., N 18 W 9 



SAPPORO, 060 Japan 

 a Cytogenetics of congenital anomalies. Bos taurus (Artiodactyla) 



ISHIZAKI, H.; D.Sc. - Dept. of Biol., Fac. of Sci., Nagoya Univ., Chikusa-ku, NAGOYA, 464 Japan 

 ISONO, N.; Ph.D. - Embryol. Sect., Biol. Dept., Tokyo Metropolitan Univ., 2-1-1 chome, Fuka- 



zawa-machi, Setagaya-ku, TOKYO, 158 Japan 

 a F.ffects of surface active agents on fertilization and embryonic development. Hemicentrotus 



pulcherrimus, Anthocidaris crassispina, Pseudocentrotus depressus (Echinoidea), Mytilus edulis 



(Lamellibranchia) 

 ITO, R.; M.Sc. - Dept. of Anat., Fac. of Med., Tokyo Med. and Dental Univ., 1-5-45, Yushima, 



Bunkyo-ku, TOKYO, 113 Japan. 

 a Resorption of collagen fibres in the metamorphosing tadpole tail. Rana catesbeiana, R. japonica, 



Bufo vulgaris (Anura) 

 b Histochemistry of glycosaminoglycans in the limb bud. Xenopus laevis (Anura) 

 IUCIF, S.; Ph.D. - Dept. de Morfol. Hum. Func. e Aplic, Univ. de Sao Paulo, C.P. 301,RIBEIRAO 



PRETO, S.P., Brazil 

 a Allometric study of the mandible during postnatal life under cortisone treatment. Rattus rattus 



(Rodentia) 

 b The effects of castration on the growth of the eyes. Same species as a 



IVERSON. R. M.; Ph.D., Prof. - Dept. of Biol., Univ. of Miami, CORAL GABLES, FL 33124, U.S.A. 

 IWAMATSU, T.; Ph.D. - Dept. of Biol., Aichi Univ. of Educ, Igaya-cho, KARIYA, Aichi Pref., 448 



Japan 

 a The acquisition of developmental capacity by the oocyte during maturation in vitro. Oryzias 



latipes (Teleostei) 

 b Differentiation of primordial germ cells implanted into the eye cavity of castrated adults. Same 



species as a 

 IWASA, K.; D.Sc. - Dept. of Biol, Coll. of Gen. Educ, Osaka Univ., Toyonaka, OSAKA, 560 Japan 

 a Comparative morphology and biochemistry of cell wall and jelly coat. Chlamydomonas reinhardi, 



Penium margaritaceum, Volvox aureus, Ankistrodesmus bibraianus (Chlorophyceae), Phaeodac- 



tylum tricornutum (Diatomeae) 

 b Physiology and biochemistry of development and differentiation of unicellular and coenobial 



forms. Chlamydomonas reinhardi, Volvox aureus (Chlorophyceae), Phaeodactylum tricornutum 



(Diatomeae) 

 IWASAKI, T.; Ph.D. - Div. of Biol, Natl. Inst, of Radiol. Sci., 9-1, 4-chome, Anagawa, CHIBA, 280 



Japan. 

 a Effects of ionizing radiations on oogenesis and embryonic development (cytology). Artemia 



salina (Anostraca, Crustacea) 

 b Cytological studies on the radiosensitivity of spermatogenesis. Bombyx mori (Lepidoptera) 

 IWASAWA, H.; D.Sc. - Biol. Inst., Fac. of Sci., Niigata Univ., NIIGATA, 950-21 Japan 

 a Embryological study on endocrine correlation. (Amphibia) 

 b Comparative embryology of reproductive organs. (Anura) 

 c Mechanism of sex differentiation (electron microscopy, organ culture), Rana spp., Xenopus laevis 



(Anura) 

 IWATA, F.; D.Sc, Prof. - Zool. Inst., Fac. of Sci., Hokkaido Univ., 10, 8, SAPPORO, 060 Japan 

 a Comparative embryology, especially taxonomic interrelationships. (Nemertea) 

 b Development and regeneration. Lineus vegitus (Nemertea) 

 c Comparative embryology. Notoplana humilis (Polycladida, Turbellaria), Pugettia quadridens 



(Brachyura, Decapoda), Dendrodoris rubra (Opisthobranchia, Gastropoda) 

 IYER, R. D.; M.Sc. - Div. of Genet., Indian Agric Res. Inst., NEW DELHI-110012, India 

 a Anther culture for haploid production. Crop plants 

 b Endosperm culture for triploid production. Same species as a 

 c Protoplast culture from pollen tetrads. Same species as a 

 d Embryological study of apomixis: its nature, origin and genetic basis. Sorghum vulgare 



(Gramineae), Areca catechu (Palmaceae) 

 IZAWA, K.; B. Fish. - Fac of Fish., Mie Univ., Edobashi, TSU, Mie, 514 Japan 

 a Postembryonic development: nauplius, copepodid and chalimus stages. Cyclopoida; Caligoida; 



Lerneopodoida (Copepoda) 

 IZZARD, C. S.; Ph.D. - Dept. of Biol. Sci., State Univ. of New York, 1400 Washington Ave, 



ALBANY, N.Y. 12222, U.S.A. 

 a Asexual reproduction, especially morphogenesis and ultrastructure. Botryllus schlosseri (Asci- 



diacea) 

 b Origin of germ cells, especially in asexual reproduction. Same species as a 

 c Motility in fibroblast-like cells and its role in morphogenesis (critical optical techniques). 



Xenopus laevis (Anura), Gallus domesticus (Aves) 

 JACOBS, R. M.; Ph.D., Prof. - Dept. of Oral Biol., Coll. of Dent., Univ. of Iowa, IOWA-City, IA 



52240, U.S.A. 

 JACOBS, W. P.; Ph.D., Prof. - Dept. of Biol., Princeton Univ., PRINCETON, NJ 08540, U.S.A. 

 JACOBSON, A. G.; Ph.D., Prof. - Dept. of Zool., Univ. of Texas, AUSTIN, Tex. 78712, U.S.A. ISDB 

 a Experimental analysis and computer simulation of the shaping of the neural plate. Taricha torosa 



(Urodela) 

 b Ultrastructural and experimental analysis of early development. Drosophila montana (Diptera) 



43 



