Chic 21 Clark 



CHIEFFI, G. Dr — 1st. di Genet. dell'Univ. di Napoli, Fac. di Sci.. Via 

 Mezzocannone 8. NAPOLI. Italia, 

 a. Development and differentiation of gonads in Elasmobranchii. Torpedo 

 ocellata and Scylliorhinus canicula (Fishes) 

 CHIH, C. S. — Lab. d'Hormonol. et Cytol. exper., ficole des Hautes Etudes, 

 Univ. Hopit. Broca, III Rue L. M. Nordmann. PARIS 13e, France, 

 a. Hormonal release of the heterotypic division (meiosis) in Rabbit. 

 (Mammalia) (in collaboration with R. MORICARD) 

 CHOW, P. S. B.Sc. — Dept of Biol., Nat. Univ. of Chekiang, HANG- 

 CHOW, China, 

 a. Studies on eye-stalk hormone in Crustacea: 



1. Isolation and purification of the hormone preparation. 



2. Chemical identification of the active principle. 



3. Mechanism of the hormonal action. 



Caridina denticulata (Decapoda) (in collaboration with H. M. KIANG, 

 J. CHU and Miss N. TSAI) 

 CHU, J. B.Sc. — Dept of Biol., Nat. Univ. of Chekiang, HANGCHOW, 

 China, 

 a. Studies on eye-stalk hormone in Crustacea: 



1. Isolation and purification of the hormone preparation. 



2. Chemical identification of the active principle. 



3. Mechanism of the hormonal action. 



Caridina denticulata (Decapoda) (in collaboration with H. M. KIANG, 

 P. S. CHOW and Miss N. TSAI) 

 CHUANG, H. H. Dr, Prof. — Dept of Zool., Coll. of Sci., Nat. Univ. 

 of Peking, Ching Shan Tung Chieh, PEIPING, China. 



a. Das Material iiber die Zusammenarbeit der Keimblatter — Versuche 

 mit Grossdefekt an verschiedenen Regionen der Neurula — soil weiter 

 bearbeitet werden. Triton alpestris und T. taeniatus (Amphibia) (dar- 

 iiber erschien bereits eine vorlaufige Mitteilung in Z. Naturforschg 2b. 

 1947) 



b. Die Wirkung von Sulfa-Verbindungen auf die embryonale Entwicklung 

 von Rana nigromaculata. (Amphibia) 



C1GADA, Miss M. Dr — 1st. di Zool. e Anat. comp., Via Celoria 10, 

 MILANO, Italia, 

 a. Protein changes in embryonic development. (Aves, Amphibia, Echino- 

 dermata) 

 CITTERIO, P. Grad. stud. — 1st. di Zool. e Anat. comp., Via Celoria 10, 

 MILANO, Italia, 

 a. Determination in early development. (Amphibia) and ( Echinodermata) 

 CLAES, M. T. — Lab. d'Embryol., Inst, de Zool., Univ. de Louvain, 71, 

 Rue de Namur, LOUVAIN, Belgique. 

 a. The development of the trabeculae cranii in perch embryos treated with 

 LiCl. Perca (Osteichtyes) (in collaboration with G. VANDEBROEK) 

 CLANCY, W. — Biol. Dept, Univ. of Oregon, EUGENE, Ore., U.S.A. 



(no data received over this year) 

 CLARK. E. R. A.B., M.D., Sc.D., Prof. Emer. — Dept of Anat., School 

 of Med., Univ. of Pennsylvania, PHILADELPHIA 4, Pa., U.S.A. 

 a. Studies on growth of various implanted tissues with the rabbit's ear 

 chamber technique. (Mammals) (in collaboration with R. G. WIL- 

 LIAMS) 



