SCOTT, T. K. Ph.D., Prof. — Dept. of Biol., Oberlin Coll.. OBERLIN. Ohio 44074. U.S.A. 



a Auxin movement; the relation between transport and growth in seedlings as influenced bv 

 age and light. Pisum sativum (Leguminosae) 



h Apical dominance; characterization of the hormonal control exhibited by shoot apices In 

 lateral bud suppression. Pisum sativum (Leguminosae), Coleus blumei (Labiafae) 



SEALE, R. U. Ph.D. — Dept. of Anat.. Univ. of Colorado Med. School, 4200 East Ninth 

 Ave.. DENVER, Colo. 80220, U.S.A. 



a Morphogenetic movement and differentiation of Hamburger-Hamilton Stage 1, 2. 3 and 

 3 + embryos in tissue culture. Gallus domesticus (Aves) 



h Developmental aspects of acquired tolerance in parabionts. Gallus domesticus (Aves) 



SEARLS, R. L. Ph.D. — Dept. of Biol.. Univ. of Virginia, Gilmer Hall, CHARLOTTES- 

 VILLE, Va. 22903, U.S.A. 



a Ectoderm-mesoderm interaction in limb development. Gallus domesticus (Avesj 



h Metabolic changes in development. Gallus domesticus (Aves) 



c Biochemistry of development. Gallus domesticus (Aves) 



SEDLACEK, J. M.D., Ph.D. — Lab. of Embryophysiol., Inst, of Physiol.. Fac. Gen. Med.. 

 Charles Univ., Albertov 5, PRAHA 2, Czechoslovakia 



a Development of spontaneous and evoked phasic activity of CNS in prenatal period. 

 (Aves; Mammalia) 



h Development of low and high frequency impedance in foetal brain tissue. (Aves; Mam- 

 malia) 



c Development of steady and membrane potential in foetal brain. (Aves; Mammalia) 



d Development of extracellular environment of foetal brain (physical and chemical). (Aves; 

 Mammalia) 



e Prenatal development of functional activity of reticular respiratory neurons. (Mammalia) 



• SEDRA, S. N. Ph.D., Prof. — Dept. of ZooL, Alexandria Univ., Moharram Bey, 



ALEXANDRIA. Egypt, U.A.R. 



a Behaviour of egg laying. Rana fusca, Bufo regulans (Anura) 



b The chronological order of ossification. Bufo regularis (Anura) 



c The development of the urogenital system. Bufo regularis (Anura) (in collaboration with 

 M. I. MICHAEL and S. H. KHALIL) 



sEFTALIOGLU, Miss A. — Dept. of Histol. and Embryol., Med. Fac, Hacettepe Science 

 Center, ANKARA, Turkey 



a Development and differentiation of mast cells after stimulation with 48/80 (histology and 

 histochemistry). Rattus norvegicus (Rodentia) 



b Ultrastructural development and differentiation of mast cells. Rattus norvegicus (Rodentia) 



SEGAL, E. Ph.D., Prof . — San Fernando Valley State Coll., 18111 Nordhoff St., NORTH- 

 RIDGE, Cahf. 91326, U.S.A. 



• SEGAL, S. J. Ph.D. — Biomed. Div., The Population Council. The Rockefeller Univ., 



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

 a Immunologic analysis of pituitary gonadotrophin function: development and species 



specificity. (Vertebrata) 

 b Mechanism of hormone action. (Vertebrata) 

 c Action of blastotoxic chemical agents. (Vertebrata) 

 SEHNAL, F. C.Sc. — Dept. of Physiol., Inst, of Entomol.. Czechoslov. Acad, of Sci., Na 



Folimance 5. PRAHA 2, Czechoslovakia 

 a Metamorphosis hormones and morphogenesis; way of action of hormones. Galleria met' 



lonella, Platysamia ricini, Trichoptera spp. (Insecta) 

 SEICHERT, V. MUDr. — Dept. of Anat., Charles Univ.. U nemocnice 3. PRAHA 2, 



Czechoslovakia 

 a Experimental analysis of limb formation. Gallus domesticus (Aves) 



• SEIDEL. F. Dr.phil., Prof. (Emer.) — Zool. Inst, der Univ., Ketzerbach 63, 355 MAR- 



BURG/Lahn, Deutsche Bundesrepublik 

 SEKERIS. C. E. Ph.D. — Physiol.-Chem. Inst. I., Med. Fak., Phihpps-Univ., 355 MAR- 



BURG/Lahn, Lahnberge, Deutsche Bundesrepublik 

 a Protein and RNA synthesis during metamorphosis; correlation with hormonal (ecdysone) 



secretion. Calliphora erythroccphala (Diptcra) 

 SEKIGUCHI, K. Ph.D. — Inst, of Zool.. Fac. of Sci.. Tokyo Kyoiku Univ., Otsuka 3-29-1, 



Bunkyo-ku. TOKYO. Japan 

 a Transplantation experiments with the egg. Tachypleus tvidentatus (Xiphosura. Arachnida) 



• SEMBRAT. K. Ph.D.. D.Sc. Prof. — Zaklad Zool. Ogolnej. Inst. Zool.. Univ. of Wroc- 



law, ul. Sienkiewicza 2i. WROCcAW, Poland 

 SELLER. Miss M. J. Ph.D.— Paediatric Research Unit. Guy's Hosp. Med. School, 



LONDON S.E.I. England 

 a Haematology of congenital anaemia in the W-series mutants. Mus musculus (Rodentia) 

 h Experimental teratology. (Mammalia) 

 c Experimental production of chimaeras by 1. fusing eggs, 2. transplantation of tissue. Mus 



musculus (Rodentia) 

 d Chromosomes of trophoblast cells. Mus musculus (Rodentia) 



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