GATES, C. H. A.B. — Dept of Anat., Med. School Univ. of Kansas, 



LAWRENCE, Kansas, U.S.A. 

 a. Comparative cell counts of cervical spinal ganglia and ventral horn on the 



normal side with the opposite where the anterior extremity failed to 



develop. Ovis aries (Artiodactyla) 

 CEI, J. M. Dr Biol.Sc. — Inst, de Zool., Univ. Nac. de Tucuman, Miguel 



Lillo 205, TUCUMAN, Argentina, S. America 

 CELESTINO da COSTA, A. F.I. I.E., Dr hon. causa: Bordeaux 1923, Tou- 

 louse 1929, Prof. — Inst, de Histol. e Embriol., Fac. de Med., LISBOA. 



Portugal 

 CENTAMORI, M. Dott. — 1st. di Biol, gen., Fac. di Med., S. Pietro, 



PERUGIA. Italia 

 CHALKLEY, D. T. B.A., M.A., Ph.D. — Univ. of Notre Dame, NOTRE 



DAME, Ind., U.S.A. 



a. Factors affecting growth of de-epidermalized 20-25 day regenerates in 

 plasma-embryo extract media. Effects of temperature, tissue extracts, 

 tissue extract fractions, co-enzymes, anti-lytic factors, carcinogens. Tritu- 

 turns viridescens (Urodela) 



b. Response of regenerating amphibian limbs to injections of carcinogens, 

 methylcolanthrene. dibenzanthracene. Triturus viridescens (Urodela) 



CHAMBERS, W. W. — Dept of Anat., School of Med., Univ. of Pennsyl- 

 vania, PHILADELPHIA 4, Pa, U.S.A. 

 a. Intraspinal sprouting elicited from intact spinal sensory neurons by ad- 

 jacent posterior root section (in collaboration with G. N. LIU) 

 GHANDEBOIS, Miss R. Lie. es Sci. — Lab. de Zool. gener. de la Fac. des 



Sci., Place Victor Hugo, MARSEILLE, France 

 CHANG. C. Y. M.S., Ph. D. — Dept of Zool.. State Univ. of Iowa, IOWA 

 CITY, Iowa, U.S.A. 

 a. Sex determination by steroid hormones. (Anura) 

 h. Parabiosis and sex differentiation. Xenopus (Anura) 



c. Inheritance of polymely. Bufo (Anura) 



d. Sex inheritance and differentiation. (Ranidae) 



CHANG, M. C. Ph.D. — Worcester Foundation for Exper. Biol., 222 

 Maple Ave, SHREWSBURY, Mass., U.S.A. 



a. Physiology of fertilization and cleavage. Oryctolagus cuniculus (Lago- 

 morpha) 



b. Fertilizability. Oryctolagus cuniculus (Lagomorpha) 



c. Parthenogenetic development of blastocysts. Oryctolagus cuniculus 

 (Lagomorpha) 



d. Effects of low temperatures on heart beat of 10 day old embryos. Oryc- 

 tolagus cuniculus (Lagomorpha) 



CHANG, T. K. Dr — Chinese Peking Union Med. College, PEKING, 

 China 



CHANMUGAM, P. K. M.Sc, M.R.C.S., L.R.C.P., L.M.S. — Dept of 

 Anat., Fac. of Med., Univ. of Ceylon. Kynsey Rd, COLOMBO 8. 

 Ceylon, India 

 a. Studies on the ova. Hemichromis bimaculatus (Pisces) 



CHAPMAN, A. O. Ph.D. — Dept of Anat., Coll. of Med., Univ. of 

 Nebraska, OMAHA 5, Nebraska, U.S.A. 

 a. Effects of radiation on developing embryos. Gallus (Aves) (in collabora- 

 tion with E. A. HOLYOKE and J. S. LATTA) 



21 



