Runnstrom 11 Saun 



b. Analyzation of the nature of the egg antifertihzin. (Echinodermata) (in 

 collaboration with A. MONROY) 



c. Action of periodate on the egg surface. (Echinoidea) (in collaboration 

 with G. KRISZAT) 



d. Action of SH-reagents on the development. (Echinoidea) 



e. The action of fertilizin. (Echinoidea) 



RUUD. Miss G. Cand. real. — Zool. Lab., Univ. of Oslo, BLINDERN, 



Norway. (no data received on Nov. l'^', 1952) 



RYKE. P. A. J. M.Sc. — Dept van Dierk., Potchefstroom Univ.. POT- 



CHEFSTROOM, Suid-Afrika. (stud.: Sool. Inst., STELLENBOSCH) 

 a. The ontogenesis of skeleton and muscles of the trunk region. Xenopus 



laevis (Anura) 

 SABBADIN, A, Dr — 1st. di Zool. e Anat. comp., Fac. di Sci., Via Loredan 



6. PADOVA, Italia. 



a. Differentiation of gonads. (Amphibia) 



b. Sex differentiation. (Ascidiae, Urochordata) 



SACERDOTE, Miss M. Dr — Inst, of Comp. Anat., Via Giovanni Gio- 

 litti 34, TORINO, Italy, (no embryological work in progress) 



SALZGEBER, Miss B. Lie. es Sci. — Lab. de Zool. de la Fac. des Sci. et 

 Lab. d'Embryol. et Teratol. exper. du C.N.R.S., Inst, de Zool. et de 

 Biol, gen., 12 Rue de I'Universite, STRASBOURG. France. 



a. Recherches sur Taction d'agents physiques et chimiques sur la differen- 

 ciation sexuelle. 



b. Recherches sur I'intersexualite experimentale produite par irradiation 

 aux rayons X. (Aves) (en collaboration avec Et. WOLFF) 



SANDISON. Miss E. E. B.Sc. — Dept of Zool., Univ. of Edinburgh. V/cst 

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

 a. The identification of the Nauplii of some South African forms with 

 notes on their life histories. (Cirripedia) 

 SANTLER. Miss J. E. B.Sc. — Dept of Embryol.. Univ. Coll. London. 

 Gower Str.. LONDON W.C. 1, England (U.K.) 

 a. Regeneration and induced proliferation in the adult. Rattus norvegicus 

 (Rodentia) (in collaboration with M. ABERCROMBIE) 

 SANYEL, S. — Cell Research Unit., Chittranjan Cancer Hospital. CAL- 

 CUTTA 26. India, 

 a. Phase contrast study of denuded corneal cells after beta ray treatment 

 and their reaction to sub-lethal cytolysis. Mus musclus (Rodentia) (in 

 collaboration with S. MOOKERJEE) 

 SATO. T. D.Sc. Dr phil.nat..Prof. — Biol. Inst., Fac. Sci.. Nagoya Univ.. 

 Chigusa-Ku. NAGOYA. Japan, 

 a. Linsenbildende Potenz des Pigmentepithels. Hynobius tokyoensis und 



Tritiirus pyrrhogaster (Urodela) 

 h. Linsenregeneration. Cobitidinae f'und verwandte Teleostei) 

 SAU\^DERS, J. W. Ph.D. — Dept of Biol., Marquette Univ., 1217 West 

 Wisconsin Ave. MILWAUKEE 3, Wis., U.S.A. 



a. Identification of prospective pigment cells. Gallus domesticus (Aves) and 

 Mus musculus (Rodentia) 



b. Factors affecting the rate of melanin synthesis in embryonic tissues. 

 Gallus domesticus (Aves) and Mus musculus (Rodentia) 



c. The role of the ectoderm in the development of the wing. Gallus domes- 

 ticus (Aves) 



