Cost 23 Dalt 



COSTELLO, L. P. Ph.D.. Prof. — Dept of Zool., Univ. of North Carolina. 

 CHAPEL HILL, N.C.. U.S.A. 



a. The effects of radioactive phosphorus on mitosis in larval epithelial 

 cells. Amblijstoma punctatum (Urodela) (in collaboration with Miss 

 C. HENLEY and D. E. KENT) 



b. Continuation of the investigation of the cytological effects of various 

 agents (including temperature and P-32) on fertilized eggs. Chaetop^ 

 terus pergamentaceus (Annelida) (in collaboration with Miss C. HEN- 

 LEY and D. E. KENT) 



COTRONEI, G. Dott., Prof. — 1st. di Anat. comp. dell'Univ., Fac. di Sci., 

 Via Borelh 50. ROMA. Italia, 

 a. Recerche su trapianti, espianti e parabiosi alio scopo di indagare i 

 processi di regolazione, differenziazione nel quadro del problemi della 

 constituzione biologica. (Anura e Urodela, Amphibia) (in collaboration 

 with Mrs L. URBANI— MISTRUZZI) 

 COUNCE. Miss S. J. B.A., M.A. — Genet. Lab., Anim. Breeding and 

 Genet. Res. Org.. Inst, of Anim. Genetics, King's Buildings. West 

 Mains Rd.. EDINBURGH 9, Scotland (U.K.) 

 a. Effect of three genetic factors (Lyra, fused and deep orange) on em- 

 bryonic development. Drosophila melanogaster (Insecta) 

 h. Survey of tracheal abnormalities in embryos of various wild-type races. 

 Drosophila melanogaster (Insecta) 

 COURRIER, R. Prof. — Lab. de Morphol. exper. et Endocrinol., Coll. de 

 France, Place Marcelin Berthelot, PARIS Ve, France, 

 (no data received over this year) 

 CRARY, D. D. — Roscoe B. Jackson Memorial Lab., Box 558, BAR HAR- 

 BOR, Me., U.S.A. 

 a. Study of two unrelated genetic types of achondroplasia, (ac) and (da). 

 Onjctolagus cuniculus (Rodentia) (in collaboration with P. B. SAWIN) 

 CROMPTON, A. W. M.Sc. — Zool. Inst.. Univ. of Stellenbosch, STEL- 

 LENBOSCH, S. Africa, 

 a. Cranial ontogenesis. Spheniscus demersus (Spheniscidae, Aves) 

 CSAPO, A. M.D. — Dept of Embryol., Carnegie Inst, of Washington, 

 Wolfe and Madison Strs, BALTIMORE 5, Md, U.S.A. 

 a. Physiology of uterine muscle, including developmental physiology. Sus 

 scro[a and Lepus cuniculus (Mammalia) 

 CZAPIK, Miss A. D.Sc. — Zool. Dept of the Jagellonian Univ., KRAKOW 

 (Cracow), St Anne 6, Poland, 

 a. Development of the heart. Agelastica alni L. (Coleoptera) 

 DALCQ, A. M. M.D., Prof. — Lab. d'Anat. et d'Embryol., Fac. de Med. 

 de rUniv., 97 Rue aux Laines, BRUXELLES, Belgique. 



a. Cytochemistry of early stages of development. (Rodentia and Insecti- 

 vora) (in collaboration with coworkers) 



b. Regulation in blastula and gastrula stage. (Urodela and Anura) (in 

 collaboration with coworkers) 



DALES, R. P. B.Sc. — Queen Mary College. Univ., Mile End Rd., LON- 

 DON E. 1, England (U.K.) (no embryological work in progress) 



DALTON, H. C. Ph.D., Prof. — Dept of Zool., New York Univ.. NEW 

 YORK. N.Y.. U.S.A. 

 a. Gene action controlling development of pigmentation in white and dark 

 strains. Siredon mexicanum (Urodela) 



