a Phosphorus metaboHsm in eggs (embryonic nutrition of phosphorus during development). 



Oryzias latipes. Salmo gairdnerii irideus (Teleostei) 

 b Regional differences in the ^^p.incorporation activity in embryos. Salmo gairdnerii irideus 

 YAMAGUCHI. T. Ph.D. — Div. of Biol., Natl. Inst, of Radiol. Sci., Anagawa 4-9, CHIBA, 



Japan 

 a Regeneration of thymus after radiation-induced involution. Rattus norvegicus, Mus 



musculus (Rodentia) 

 b Role of thymus in immunogenesis. Rattus norvegicus, Mus musculus (Rodentia) 



• YAMAMOTO, K. D.Sc, Prof. — Lab. of Fresh-water Fish Culture, Dept. of Biol.. Fac. 



of Fisheries. Hokkaido Univ.. HAKODATE. Japan 

 a Histo-physiological studies of oogenesis. (Teleostei) 

 h Electron microscopical studies of oogenesis. (Teleostei) 

 c Studies on the hormones of reproduction. (Teleostei) 

 YAMAMOTO. T. Prof. — Dept. of Anat., Fac. of Med., Kyushu Univ., FUKUOKA. Japan 



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



NAGOYA. Japan 

 a On the mechanism of fertilization and activation. Oryzias latipes (Teleostei) 

 h Artificial induction of functional sex-reversal. Oryzias latipes ( Teleostei) 

 c Developmental genetics. Oryzias latipes (Teleostei) 



d Sex determination and sex reversal. Carassius c. auratus. C. c. langsdorfii (Teleostei) 

 YAMAMOTO, T. S. D.Sc. — Dept. of Zool.. Fac. of Sci.. Hokkaido Univ., North 8, West 



5, SAPPORO. Japan 

 a Cytochemical investigation on development. (Teleostei) 

 YAMAMURA, H. M.D. — Dept. of Anat.. Fac. of Med.. Kyoto Univ.. Konoe-cho. Yoshida, 



Sakyo-ku. KYOTO. Japan 

 a Individual differences in the organogenesis of embryos at the sensitive stages for terato- 



genesis. Mus musculus (Rodentia) 

 b Individual differences and developmental changes in the enzymatic activity and in the 



isozymic pattern of embryos. Homo sapiens (Primates) 

 YAMAMURA. S. M.D. — Japan Dental Pathol, and Embryol. Res. Inst., c/o Yamamura 



Dental Office. No. 12 Higashi-Ichi-Bancho. SENDAI. Japan 

 YAMANA. K. D.Sc. Prof . — Dept. of Biol., Embryol. Inst., Fac. of Sci., Kyushu Univ., 



Hakozaki. FUKUOKA, Japan 

 a Nucleic acid metabolism in developing embryos. Rana japonica. Xenopus laevis (Anura) 

 b Teratogenic effects on developing embryos of some nucleic acid-base analogues. Xenopus 



laevis (Anura) 

 YANAGIMACHI. R. Ph.D. — Dept. of Anat.. School of Med.. Univ. of Hawaii. 2538 The 



Mall, HONOLULU. Hawaii 96822, U.S.A. 

 a In vitro fertilization and development of eggs. Rattus norvegicus, Mus musculus, 



Mesocricetus auratus (Rodentia) 

 h Chromosomes and development. Rattus norvegicus, Mus musculus, Mesocricetus auratus 



(Rodentia) 

 c Mechanisms and control of sex. Rhizocephala spec. (Cirripedia). Rattus norvegicus, Mus 



musculus, Mesocricetus auratus (Rodentia) 

 YANAGISAWA, T. D.Sc. — Embryol. Section, Biol. Dept., Fac. of Sci.. Tokyo Metropoli- 

 tan Univ., 950 1-chome. Fukaza-machi. Setagaya-ku. TOKYO. Japan 

 a Phosphagens in egg and spermatozoa. (Echinodermata) 

 b Ion exchange and paper chromatographic studies on the nature of the acid-soluble 



nucleotides in the egg and their changes during development. Hemicentrotus spec, An- 



thocidaris spec. Pseudocenfrotus spec. (Echinoidea), Asterias spec, Asterina spec. 



( Asteroidea) 

 c Phosphagen and guanidine phosphoryltransferase in spermatozoa. (Mammalia) 

 d Tracer experiments on phosphate, sugar and nucleic acid metabolism of embryo. 



(Echinodermata) 

 YANG, W. T. Ph.D. — Inst, of Marine Sci., Univ. of Miami. 1 Rickenbacker Causeway. 



Virginia Key, MIAMI. Fla. 33149, U.S.A. 

 a Larval and juvenile development. (Oxyrhyncha, Decapoda, Crustacea) 

 b Larval and juvenile development. Bathynectcs superba (Portunidae, Decapoda. Crustacea) 

 YASUDA, M. M.D. — Dept. of Anat., Fac. of Med., Kyoto Univ., Konoe-cho, Yoshida, 



Sakyo-ku. KYOTO. Japan 

 a Effects of antimetabolites upon the embryonic development. Mus musculus (Rodentia), 



Coturnix coturnix japonica (Aves) 

 h Epidemiological studies on anomalies in embryos. Homo sapiens (Primates) 

 c Chromosome aberrations and the sex ratio in embryos. Homo sapiens (Primates) 

 YATVIN, M. B. Ph.D. — Dept. of Radiol., Med. School. Univ. of Wi.sconsin. 1300 



University Ave., MADISON. Wis. 53706, U.S.A. 

 a Mechanism controlling ovulation, and the effect of ionizing radiation. (Anura) 

 b Hormonal control of feather differentiation. Callus domesticus (Aves) 

 YAZAKI. Miss I. M.A. — Embryol. Sect., Dept. of Biol., Fac. of Sci., Tokyo Metropolitan 

 Univ., Setagaya-ku, TOKYO. Japan 



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