Neu 66 Nich 



a. Chemistry of muscle differentiation, determination of actin and myosin 

 and phosphate fractions in muscle of embryos after the 7th day of 

 development (concluded). Gallus (Aves) (in collaboration with H. 

 HERRMANN and M. J. SCHNEIDER) 



b. Determination and fractionation of nucleoproteins and determination of 

 enzymes in somites from the 2nd to the 5th day of incubation and in 

 differentiating muscle from the 7th day of incubation to hatching. Gallus 

 (Aves) (in collaboration with H. HERRMANN and M. J. SCHNEI- 

 DER) 



c. Chemical fractionation of cell nuclei and mitochondria of differentiating 

 muscle. Gallus (Aves) (in collaboration with H. HERRMANN and 

 M. J. SCHNEIDER) 



d. Histological examination of muscle development including quantitative 

 determinations of volume of somite columns, of cell number, and of 

 mitotic index of somites. (Aves) (in collaboration with H. HERRMANN 

 and M. J. SCHNEIDER) 



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

 Genetics and Cytology, SALT LAKE CITY, Utah, U.S.A. 



a. Development of the head; comparison of the dev. of a trait called 

 "tumorous-head" with the normal. Drosophila melanog aster (Insecta) 



b. Gene action during development; morphological changes produced by 

 mutant genes. Drosophila melanogaster (Insecta) 



NEWELL, G. E. B.Sc, Ph.D. — Queen Mary Coll., Univ. of London, Mile 

 End Rd., LONDON E. 1, England (U.K.) 

 (no embryological work in progress) 

 NEWTH, D. R. B.Sc. — Dept of Zool. and Comp. Anat., Univ. Coll. 

 London. Cower St., LONDON W.C. 1. England (U.K.) 

 a. The capacity of the annular tympanic cartilage of metamorphosing ani- 

 mals to induce tympanic membrane formation when heteroplastically and 

 xenoplastically transplanted. Xenopus laevis (Anura) 

 h. The fate of the neural crest. Lampetra planeri (Cyclostomata, Pisces) 



c. The measurement of the forces involved in neurulation. (Urodela) 



d. The development of the skeleton and muscles of the tail. Xenopus laevis 

 (Anura) (Normal Table) 



NEWTON, B. L. M.D., CM. — Dept of Pathol., Coll. of Med., Baylor 



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



Tex., U.S.A. 

 a. Continued investigation by homologous and heterologous transplantation 



of embryonic material relating to its development in the anterior chamber 



in the eye using the method developed by H. S. N. GREENE. Homo, 



Cavia and Mus musculus (Mammalia) 

 h. Continuation of investigations dealing with the heterotransplantabihty 



of neoplasms, utilizing the anterior ocular chamber of the guinea pig 



and the rabbit. Canis and Homo (Mammalia) 

 NICHOLAS, J. S. Ph.D.. Prof. — Osborn Zool. Lab., Yale Univ.. NEW 



HAVEN 11. Conn.. U.S.A. 

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

 h. The development of actomyosin in developing muscle. Mus norvegicus 



(Rodentia) 

 c. The interaction of the roof of the archenteron upon the nervous system. 



Amblystoma mexicanum (Urodela) 



