NIKITINA, Mrs. L. A. — Inst, of Animal Morphol.. Acad, of Sci. of the 

 U.S.S.R.. Vavilov St. 12, MOSCOW V-133, U.S.S.R. 

 a. The nature of the specificity of oocyte nuclei in the process of oocyte 

 maturation. (Amphibia) (in collaboration with Mrs. T. A. DETTLAFF) 



NIKOLSKAJA. Miss I. S. Cand.biol.sci. — Inst, of Animal Morphol.. Acad, 

 of Sci. of the U.S.S.R., Vavilov St. 1 2. MOSCOW V-133. U.S.S.R. 

 a. Developmental biochemistry and physiology (respiration, blood pig- 

 ments, action of respiratory inhibitors, contractile proteins), Strongyl- 

 ocentrotus drobachiensis (Echinoidea) , Misgurnus fossilis. Salmo salar 

 (Teleostei), (Amphibia) 



NIRSeN, C. M.D. — Dept. of Histol, Karolinska Inst., Solnavagen 1. 

 STOCKHOLM 60. Sweden 

 a. Histogenesis of muscle tissue. 



NISHIMURA. H. M.D.. Prof. — Dept. of Anat., Kyoto Univ., Sakyo-ku, 

 KYOTO. Japan 



a. Modification of susceptibility to teratogenesis. Mas musculus (Roden- 

 fia) 



b. Evaluation of tests on drug teratogenicity safety. Mas musculus, Rattus 

 norvegicus (Rodentia) , Oryctolagus cuniculus (Lagomorpha) 



c. Anomalies in early embryos and maternal factors. Homo sapiens (Pri- 

 mates) 



NISHIOKA, Miss M. D.Sc. — Zool. Lab.. Fac. of Sci., Hiroshima Univ., 

 HigasTiisenda-cho. HIROSHIMA, Japan 

 a. Synthesis of amphidiploids. (Ranidae, Anura) 



h. Synthesis of nucleo-cytoplasmic hybrids between different species. 

 (Ranidae, Anura) 

 NIU. M. C. Ph.D., M.I.I.E.. Prof. — Dept. of Biol., Temple Univ., PHILA- 

 DELPHIA 22, Pa.. U.S.A. 

 NIWELInSKL J. M. Ph.D. — Dept. of Biol, and Embryol., Acad, of Med.. 



ul. Kopernika 7. KRAKoW. Poland 

 NIXON, D. A. M.Sc, Ph.D. — Physiol. Dept.. St. Mary's Hosp. Med. 

 School, Paddington. LONDON W.2, England 

 a. Perfusion of the isolated foetus. Ovis aries (Artiodactyla) 

 h. Development of renal function. Ovis aries (Artiodactyla) 

 NOBILI, R. Dr.Biol.Sci. — 1st. di Zool. e Anat. comp. dell'Univ.. Via A. 

 Volta 4, PISA, Italia 

 a. Reproduction and cytology. (Ciliata) 

 NOGAMI. H. M.D. — Henry Phipps Inst., Univ. of Pennsylvania. School 

 of Med., 4219 Chester Avenue, PHILADELPHIA 4, Pa., U.S.A. 

 a. Digital malformations in the embryo caused by X-radiation. Mus mus- 

 culus (Rodentia) 

 NOLTE. H. v. d. V. B.Sc. — Dept. of Zool.. Fac. of Sci.. Univ. of Pretoria. 



PRETORIA, Republic of South Africa 

 NONAMI. Y. D.Agr.Chem., Prof. — Fac. of Agric, Univ. of Niigata. 106. 

 Koganecho, NIIGATA. Japan 

 a. Dialyzable oligosaccharides of yolk plasma of the incubated egg (fate of 

 sugars and glycoproteins during incubation and preservation of eggs). 

 Gallus domesticus (Aves) 

 NORMAN, C. B.S., M.S., Ph.D.. Prof. — Dept. of Biol., West Virginia 

 Univ., MORGANTOWN, W.Va., U.S.A. 



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