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

 collaboration with T. HISHIDA) 



NAKAYAMA. T. M.B.. M.D. — Anat. Inst., Med. Fac. Nihon Univ., 



No. 724, Ooyaguchi-machi, Itabashi-ku, TOKYO, Japan 

 NAPP, M. B.A., M.Sc. — Long Island Univ.. 385 Flatbush Avenue Exten- 

 sion, BROOKLYN, N.Y., U.S.A. 

 NAYLOR, E. B.Sc, Ph.D. — Dept of Zool., Univ. Coll. of Swansea, 



Singleton Park, SWANSEA, Glamorganshire, Wales 

 a. Determination of asymmetry in development and regeneration of the 



operculum. Hydroides norvegica (Polychaeta) 

 NEEDHAM, A. E. M.A., D.Sc. — Dept of Zool. and Comp. Anat., The 



Univ. Museum, OXFORD, England 

 a. Nitrogen excretion during wound-healing and regeneration. Lumbricus 



terrestris. Eisenia [oetida, Allolobophora caliginosa (Oligochaeta) 

 NEEDHAM, J. Dr, F.I. I.E., Prof. — Gonville and Caius Coll., CAM- 

 BRIDGE. England 

 NEF, W. — Abt. f. Genet.. Zool. Inst, der Univ. Bern, Sahhstr. 8, BERN, 



Schweiz 

 a. Entwicklungsphysiologie einer Fliigel-Borsten-Mutante. Drosophila spec. 



(Diptera) (in Zusammenarbeit mit S. ROSIN) 

 NEWBY, W. W. Ph.D. (Stanford Univ.. 1939) — Dept of Genetics and 



Cytology. Div. of Biol., Univ. of Utah. SALT LAKE CITY, Utah, 



U.S.A. 

 NEWTH. D. R. B.Sc. Ph.D.. M.I. I.E. — Dept of Zool. and Comp. Anat., 



Univ. Coll. London. Gower St. LONDON W.C. 1. England 

 a. Regeneration of defective organs. (Amphibia) 

 NEWTON. B. L. B.A.. M.D.C.M. — Dept of Pathol.. Coll. of Med.. Baylor 



Univ.. 1200 M.D. Anderson Blvd. Texas Med. Center, HOUSTON 5, 



Tex., U.S.A. 



(no embryological work in progress) 

 NICHOLAS, J. S. Ph.D., F.I.I.E.. Prof. — Osborn Zool. Lab.. Yale Univ., 



NEW HAVEN 11, Conn., U.S.A. 

 a. Studies on the egg. Mus norvegicus (Rodentia) 

 h. Determination times of tissues and organs. Mus norvegicus (Rodentia) 



c. Factors underlying embryonic form. 



d. Development of nucleic acids in embryos. (Amphibia), Mus norvegicus 

 (Rodentia) tia) 



e. Development of acidphosphatase. (Amphibia), Mus norvegicus (Roden- 



f. Centrifugation and transplantation of eggs. Mus norvegicus (Rodentia) 



g. Culture of eggs and embryos. Mus norvegicus (Rodentia) 



h. Heteroplastic grafting. Gallus gallus (Aves) (host), Mus norvegicus 



(Rodentia) (donor) 

 j. Coelomic studies of differentiation. Mus norvegicus (Rodentia) 

 k. Study of the forces engaged in cleavage. 

 NICOLA. Miss M. DE Dr Sci. — Centro di Studio per la Biol, del C.N.R.. 



Stazione Zool. NAPOLI. Italia 

 NIESSING. K. Dr med., o.Prof. — Anat. Inst, der Univ., Robert Kochstr. 6, 

 MARBURG/Lahn. Deutschland 

 (no embryological work in progress) 

 NIEUWKOOP. P. D. Phil.Dr. M.I.I.E. — Hubrecht Lab., Intern. Embryol. 

 Inst., Janskerkhof 2, UTRECHT, Holland 



79 



