Nel 64 Newton 



NELSEN, O. E. Ph.D., Prof. — Dept of Zool., Univ. of Pennsylvania, 

 PHILADELPHIA, Pa, U.S.A. (no data received over this year) 



NEUKOM, B. J. B.S. — Univ. of Colorado, Med. Center, Dept of Pedia- 

 trics, 4200 east Ninth Ave, DENVER 7, Col., U.S.A. 



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

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

 of development (concluded). (Aves) (in collaboration with H. HERR- 

 MANN and M. J. SCHNEIDER) 



b. Determination and fractionation of nucleoproteins and determination of 

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

 and in differentiating chick muscle from the 7th day of incubation to 

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

 SCHNEIDER) 



c. Chemical fractionation of cell nuclei and mitochondria of differentiating 

 muscle of chick. (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. HERR- 

 MANN and M. J. SCHNEIDER) 



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



Mile End Rd, LONDON E. 1, England, 

 a. Breeding habits, embryology and larval life-history of Clymenella tor- 



quata (Polychaetes) 

 NEWHALL, C. A. A.B., M.D., Prof. — Dept of Anat., Univ. of Vermont, 



Coll. of Med., BURLINGTON, Vt, U.S.A. 



(no data received over this year) 

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



London, Gower St, LONDON W.C. 1, England. 



a. The study of the normal development of the cornea of the eye in an 

 amphibian. Xenopus laevis 



b. The determination of the capacity of the annular tympanic cartilage of 

 metamorphosing animals to induce tympanic membrane formation when 

 heteroplastically and xenoplastically transplanted. Xenopus laevis (Am- 

 phibia, Anura) 



c. The fate of the neural crest in lampreys. Lampetta planeri (Cyclostomata) 



d. The measurement of the forces involved in neurulation. Amblystoma 



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

 from early tail-bud stage till end of metamorphosis. (Anura, Amphibia) 

 (Normal Table) 



NEWTON, B. L. M.D., CM. — Dept of Anat., 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. Material 

 from human fetuses as well as guinea pigs and mouse embryos will be 

 used. (Mammals) 



b. Continuation of investigations dealing with the heterotransplantability 

 of neoplasms in dogs and man, utilizing the anterior ocular chamber of 

 guinea pigs and rabbits. (Mammals) 



