BUTLER, E. G. Ph.D., D.Sc, Prof.(Emer.) — Dept. of Biol., Princeton Univ., PRINCETON, 



N.J. 08540, U.S.A. • 



a The mechanics of the formation of the regeneration blastema; the influence of nerves on 



blastema formation; regression in nerveless non-regenerating limbs. Ambystoma punctatum, 



A. opacum (Urodela) 

 b Effects of ultraviolet radiation on limb development and supernumerary limb regeneration. 



(Urodela) 

 c Problems of polarity in the limb; regeneration after reversal of the proximo-distal axis. 



(Urodela) 

 d Epidermal hyperplasia. (Urodela; Mammalia) 

 e Spinal cord reconstitution after ablation. (Urodela) 

 BUTLER, H. M.D., B.Chir. — Dept. of Anat, Univ. of Saskatchewan, SASKATOON, Sask., 



Canada 

 a Reproductive cycle, implantation, placentation and early embryology. Galago senegalensis 



senegalensis (Lemuroidea, Primates) 

 BUTLER, W.L. Ph.D., Prof. — Dept. of Biol., Univ. of California, San Diego, P.O. Box 109, 



LA JOLLA, Calif. 92037, U.S.A. 

 a Mechanism of phytochrome action in development. (Spermatophyta) 



b Photosynthesis and the development of the photosynthetic apparatus. (Spermatophyta) 

 c Photocontrol mechanisms of cellular metabolism and development. (Bacteria; Plantae; 



Animalia) 

 BUTROS, J. M. Ph.D., Prof. — Biol. Dept., American Univ. of Beirut, BEIRUT, Lebanon • 

 a Action of stimulants and depressants on development of the heart primordium in vitro. 



G alius domesticus (Aves) 

 b Action of spermine on early differentiation and morphogenesis, in vitro and in vivo. 



Gallus domesticus (Aves) 

 BUTTERWORTH, F. M. Ph.D., Prof. — Dept. of Biol. Sci., Oakland Univ., ROCHESTER, 



Mich. 48063, U.S.A. 

 a The hormonal and genetic control of development and reproduction of the adipose tissue 



on the cellular and biochemical level (microsurgery, transplantation, cytology, bio- 

 chemistry) . Drosophila melanogastec (Dipteva) 

 b The role of the internal environment and of development of lysosomes on cell death of 



the larval fat body. Drosophila spec. (Diptera) 

 BUTZEL, H. M., Jr. Ph.D., Prof. — Dept. of Biol. Sci., Union College, SCHENECTADY, 



N.Y. 12308, U.S.A. 

 a Developmental genetics of mating type. Paramaecium aurelia (Ciliata) 

 b Organelle development: study of the role of organelles in teratogenesis of single and 



double cells. Paramaecium aurelia (Ciliata) 

 BUZNIKOV, G. A. Dr.biol.sci. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., 



Vavilov St. 26, MOSCOW 117133, U.S.S.R. 

 a The role of neurotransmitters (acetylcholine, serotonin, catecholamines) in early embryo- 

 genesis. Strong ylocentrotus drobachiensis, S. nudus, S. intermedius, Paracentrotus lividus, 



Arbacia lixula, Sphaerechinus granularis (Echinoidea), Rana temporaria, Bufo bufo 



(Anuva) (with L. N. MARKOVA) 

 BYCZKOWSKA (SMYK), Mrs. W. Dr. — Dept. of Comp. Anat., Jagellonian Univ., 



ul.Krupnicza 50, KRAKOW, Poland 

 BYLINA (KUfiSKA) , Mrs. A. mgr. Sci. — Dept. of Histol. and Embryol., Warsaw Agric. 



Univ., ul.Grochowska 272, WARSZAWA, Poland 

 a Histochemistry of metanephros differentiation. Sus domesticus (Artiodactyla) 

 BYRD, E. W., Jr. M.A. — Dept. of Zool., Univ. of British Columbia, VANCOUVER 8, 



B.C., Canada 

 a Histone synthesis during cleavage. Xenopus laevis (Anura) (with H. E. KASINSKY) 

 b Patterns of basic ribosomal protein and histone synthesis during development. Drosophila 



melanogastev (Diptera) (with H. E. KASINSKY) 

 BYSKOV (SJOLTE), Mrs. A. G. — Finsen Lab., Finsen Inst., 49 Strandboulevarden, 2100 



COPENHAGEN, Denmark 

 a Development of ovaries (electron microscopy, autoradiography, cell dynamics of atresia). 



(Rodentia) 

 BYTINSKY-SALZ, H. Ph.D., Prof. — Dept. of Zool., Tel-Aviv Univ., 155 Herzl St., TEL- 

 AVIV, Israel 

 a Hormonal influences on melanophore behavior in tadpoles. Rana spec, Pelobates spec. 



(Anura) 

 b Species specificity of different larvae tested by xenoplastic transplantation of hypophysis. 

 Pelobates spec, Xenopus spec, Bufo spec, Rana spec, Bombina spec, Hyla spec. (Anura), 



Pleurodeles spec, Triton spec, Ambystoma spec. (Urodela) 

 c Cytology of the larval skin. (Amphibia) 

 CABADA, M. O. Biochem. — Inst, de Biol, Univ. Nac de Tucuman, Chacabuco 461, S. M. 



de TUCUMAN, Argentina 

 a Chemical factors involved in fertilization: testicular factors, jelly coats. Bufo arenarum 

 (Anura) 



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