SKALKO, R. G. Ph.D. — Dept. of Anat., Med. Coll., Cornell Univ., 1300 York Ave., NEW 



YORK, N.Y. 10021, U.S.A. 

 SKOWRON (CENDRZAK). Mrs. A. Ph.D. — Dept. of Exper. Zool., Polish Acad, of Sci. 



ul. Kopernika 7, KRAKOW, Poland 

 SKOWRON, S. Ph.D., Prof. — Dept. of Biol, and Embryol., Acad, of Med., and Dept. of 



Exper. Zool., Polish Acad, of Sci., ul. Kopernika 7, KRAKOW, Poland 



• SKREB, N. M.D., D.Sc. Prof. — Inst, of Biol., Fac. of Med., ZAGREB, Salata, Yugoslavia 

 a Investigation of early differentiation; transplantation, in vitro culture, autoradiography. 



Rattus norvegicus (Rodentia) (in collaboration with Mrs. B. LEVAK (SVAJGER), D. 

 SOLTER and A. SVAJGER) 

 b Analysis of soluble proteins in organogenesis. Rattus norvegicus (Rodentia) (in collabo- 

 ration with D. SERMAN) 



• SLAB?, O. D.Sc, Prof. — Inst, of Histol. and Embryol., Fac. of Med., Charles Univ.. 



Karlovarska 48, PLZEN, Czechoslovakia 

 a The development of the skull. (Amniota. incl. Homo sapiens) 

 h The development of the limbs. (Amniota, incl. Homo sapiens) 

 c The development of the nasal cavity. (Amniota, incl. Homo sapiens) 

 d Experimental analysis of the morphogenesis of the limbs. Rattus rattus (Rodentia), Homo 



sapiens (Primates) 

 e Factors producing malformations. (Amniota, incl. Homo sapiens) 



• SLADECEK, F. RNDr., D.Sc. Prof. — Dept. of Gener. and Exper. Zool.. Fac of Sci.. 



Charles Univ., Vinicna 7. PRAHA 2, Czechoslovakia 



a Transplantation of nuclei in relation to the development of antigenic characteristics 

 (Amphibia) (in collaboration with A. ROMANOVSK?) 



b Transplantation of nuclei in relation to nucleic acids. (Amphibia) (in collaboration with 

 J. NEDVIDEK) 



c Number of cell generations in relation to cell determination. (Amphibia) 



SLAMA, K. C.Sc — Dept. of Physiol., Inst, of Entomol., Czechoslov. Acad, of Sci., Na 

 Folimance 5, PRAHA 2, Czechoslovakia 



a The effect of hormones on: respiratory enzymes, esterases, nucleic acid synthesis, blood 

 protein composition, respiratory rate, growth rate, development, in different tissues during 

 metamorphosis and reproduction. Pyrrhocoris apterus (Hemiptera), Galleria mellonella 

 (Lepidoptera), Tenebrio molitor (Coleoptera) 



SLIJPER, E. J. Dr., Prof. — Zool. Lab.. Univ. of Amsterdam, Plantage Doklaan 44, AM- 

 STERDAM C, Netherlands 



a The embryonic blood circulation (ductus Botalli, ductus Arantii etc.), particularly in 

 aquatic forms. (Mammalia) 



SLIPKA, J. C.Sc. — Inst, of Histol. and Embryol., Fac. of Med., Charles Univ., Karlovarska 

 48, PLZEN, Czechoslovakia 



a The development and teratology of the branchial region. (Amniota, incl. Homo sapiens) 



h The early development of the thyroid gland. (Amniota, incl. Homo sapiens) 



SMIRNOWA. Mrs. E. I. Cand.biol.sci. — Dept. of Embryol., Fac. of Biol., Moscow Univ., 

 MOSCOW V-234, U.S.S.R. 



SMIT, A. L. D.Sc, Prof. — Dept. of Zool., Univ. Coll.. Private Bag 4001, DURBAN. 

 S.Africa 



a The ontogenesis of the head skeleton and musculature. Dendroaspis augusticeps. D. 

 polylepis (Ophidia) 



SMIT, P. Med.drs. — Div. of exper. Morphol., Dept. of Anat. and Embryol., Univ. of Am- 

 sterdam, Mauritskade 61, AMSTERDAM O., Netherlands 



a Effect of X-rays on ovarial oogenesis. Mus spec (Rodentia) (in collaboration with H. A 

 L. TRAMPUSCH) 



SMITH, A. E. S. Ph.D. — Dept. of Devel. Biol., Div. of Biol., California Inst, of Technol.. 

 PASADENA. Cahf. 91109, U.S.A. 



a Regulation of protein and nucleic acid synthesis at fertilization and during subsequent 

 development. Llrechis caupo (Gephyrea, Annelida), (Echinoidea) 



SMITH, J. G. B.S. — Botany Dept., Univ. of Michigan, ANN ARBOR. Mich. 48104, U.S.A. 



a A study of embryogenesis from egg to mature embryo, with emphasis on the minimal 

 chemical and physical requirements for natural growth and development (histological, 

 cytochemical, analytical biochemical, and culture techniques). Phaseolus vulgaris (Papili- 

 onaceae) 



SMITH, K. D. Ph.D. — Dept. of Biol., Johns Hopkins Univ.. Charles and 34th Sts.. BAL- 

 TIMORE, Md. 21218, U.S.A. 



a Biochemical studies on gene action during development. Arbacia punctulata (Echinoidea), 

 Ascidia nigra (Tunicata), Mus muscutus (Rodentia) 



SMITH, L. D. Ph.D. — Div. of Biol, and Med. Research, Argonne Natl. Lab., 9700 South 

 Cass Ave., ARGONNE, 111. 60439, U.S.A. 



a Embryological and genetical studies on origin of germ cells. Ambystoma mexicanum 

 (Urodela), Rana pipiens (Anura) 



h Biochemistry of early embryonic development; protein synthesis in early development 

 Rana pipiens (Anura) 



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