d Study of 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. (Plantae) 

 b Photobiology of development. (Algae) 



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

 a Promoting action of RNA from embryonic organs on differentiation of fragments of early 



blastoderms. Gallus domesticus (Aues) 

 h Entry and action of RNA on protein synthesis. Lytechinus pictus (Echinoidea) 

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



Gallus domesticus (Aves) 

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



48063. U.S.A. 

 a The hormonal and genetic control of development of the adipose tissue on the cellular and 

 biochemical level (microsurgical, transplantation, cytological and biochemical techniques). 

 Drosophila melanogaster (Diptera) 

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



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

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

 h 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 B-133, 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 granulans ( Echinoidea), Rana temporaria, Buf a bu^o (Anura) 

 (in collaboration with Mrs. L. N. MARKOVA) 

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



Krupnicza 50, KRAKOW, Poland 

 a Electron microscopic studies of spermiogenesis. Tetrodontophora bielanensis (Collembola) 

 BYLINA (KUf^SKA). Mrs. A. mgr.Sci. — Dept. of Histol, and Embryol.. Fac. of Vet. Med., 



Warsaw Agricult. Univ.. Grochowska 272. WARSZAWA. Poland 

 a Histochemical studies on differentiation of metanephros. Sus domesticus (Artiodactyla) 

 BYTINSKI-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) 



CAHN, R. D. Dr. — Dept. of Zool., Univ. of Washington, SEATTLE, Wash. 98105, 



U.S.A. 

 CAIRNS, J. M. Ph.D. — Springville Labs., Roswell Park Mem. Inst., SPRINGVILLE, 



N.Y. 14141, U.S.A. 

 CALLEBAUT. M. E. M.D. — Lab. of Anat. and Embryol.. State Univ. Center. Groenen- 



borgerlaan 171. ANTWERPEN. Belgium 

 a Early development. Gallus domesticus, Coturnix coturnix (Aves) 

 b ^H-Uridine and ^H-thymidine incorporation in germ cells. Coturnix coturnix (Aves) 

 CAMBAR. R. Dr.. Prof. — Lab. de Biol. Anim., Fac des Sci. de Bordeaux. 351 Cours de 



la Liberation, 33 TALENCE, France 

 a Etude descriptive et experimentale de la morphogenese du mesonephros. Rana spec, Alytes 



spec, Discoglossus spec. Xenopus spec. (Anura) 

 h Etude experimentale de la morphogenese du tube digestif et des glandes annexes. (Anura) 

 c Involution ou transformation de I'appareil excreteur pendant la metamorphose. (Anura) 

 d Rapports entre I'appareil genital et I'appareil excreteur. (Anura) 

 e Recherches descriptives sur le developpement. Gambusia spec. (Teleostei) 

 f Ultrastructure du pronephros et du mesonephros. (Anura) 

 g Differenciation sexuelle. (Anura) 

 CAMENZIND. R. Dr.scnat. — Dept. of Zool.. Swiss Federal Inst, of Technol., Universitat- 



str. 2. 8006 ZURICH. Switzerland 

 a Morphology, physiology and cytology of paedogenetic-bisexual reproduction cycle. He- 

 teropeza pygmaea (= Oligarces paradoxus), Tekomyia populi; Mycophila spec. (Itonididae 

 = Cecidomyiidae. Diptera) 



31 



