• BEETSCHEN, J. C. Dr.es Sci., Prof . — Lab. de Biol, gener., Fac. des Sci., 118 Route de 



Narbonne. 31 -TOULOUSE. France 

 a Recherches cytologiques, embryologiques et gcnetiques sur I'hcteroploidie experimentale. 



(Amphibia ) 

 h Hybridation interspecifique. (Amphibia) 

 c Etude d'un facteur recessif scmi-lctal, ac. Pleurodeles waltlii (Urodela) (en collaboration 



avec A. JAYLET) 

 d Metamorphose induite experimentalement par la thyroxine. (Amphibia) 

 e Etude experimentale de la diffcrenciation des cellules embryonnaires en culture in vitro. 



(Urodela) (en collaboration avec Mme A. M. DUPRAT) 

 BELKA (GRZYBEK), Mrs. A. Ph.D. — Dept. of Gener. Biol., Silesian Acad, of Med., 



Rokitnica, ZABRZE 8, Poland 

 BELL, E. Ph.D. — Dept. of Biol., Mass. Inst, of Techno!., CAMBRIDGE, Mass. 02139, 



U.S.A. 

 BELL, L. G. E. Ph.D. — Dept. of Zool., Univ. of Southampton, SOUTHAMPTON, Hamp- 

 shire, England 

 BELLAIRS, A. d'A. D.Sc. — Dept. of Anat., St. Mary's Hosp. Med. School, LONDON 



W.2, England 

 a Morphogenesis of skeleton. (Reptilia; Aves; Mammalia) 

 b Embryonic membranes. (Reptilia) 

 c Regeneration. (Reptilia) 



• BELLAIRS, Mrs. M. R. Ph.D. — Dept. of Anat. and Embryol., Univ. Coll. London, Gower 



St., LONDON W.C. 1, England 



a An electron microscopical and histochemical analysis of yolk formation. Gallus domesticus 

 (Aves) 



BELLINI (CARDELLINI), Miss L. Ph.D. — 1st. di Zool. e Anat. Comp., Fac. di Sci., Univ. 

 dcgli Studi, Piazza F. Marchetti, CAMERINO, Italia 



BELLONI, C. Dott.in Sci.biol. — 1st. di Zool. Gener., Fac. di Sci. Agraria, Univ. di Perugia, 

 S.Pietro, PERUGIA, Italia 



a Azione della actinomicina D sullo sviluppo. Drosophila melanogaster (Diptera) 



BELOUSOV, L. W. Cand.biol.sci. — Dept. of Embryol., Fac. of Biol., Moscow Univ., MOS- 

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



BELSARE, D. K. Ph.D. — Post-Graduate Dept. of Zool., Univ. of Nagpur, NAGPUR, 

 India 



a Development of the gonads. Notopterus notopterus (Notopteridae, Teleostei) 



h Studies on germ cells (descriptive and experimental). Channa punctatus (Ophicephalidae, 

 Teleostei) 



c Physiology of embryonic heart with special reference to its response to adrenergic and 

 cholinergic drugs. Gambusia a[iinis patruelis (Poecilidae), Channa punctatus (Ophicepha- 

 lidae, Teleostei) (in collaboration with A. K. DORLE) 



d Lactic dehydrogenase activity in embryonic heart. Channa punctatus (Ophicephalidae, 

 Teleostei) 



e Phospholipid distribution in embryonic liver. Channa punctatus (Ophicephalidae, Tele- 

 ostei) 



BENAZZI (LENTATI), Mrs. G. Prof . — 1st. di Zool. e Anat. comp. dell'Univ., Via A. 

 Volta 4, PISA, Italia 



a Cytochemistry of oogenesis, maturation divisions, fertilization and pseudogamy, polyploidy. 

 (Tricladidea, Turbellaria) 



• BENAZZI, M. Prof. — 1st. di Zool. e Anat. comp. dell'Univ., Via A. Volta 4, PISA, Italia 

 a Asexual reproduction, pseudogamy, polyploidy and heredity. (Tricladidea, Turbellaria) 



h Action of X-rays on development. (Tricladidea, Turbellaria) 



c Study of sex. Bacillus rossius (Phasmidae, Orthoptera) 



BENDER, H. A. Ph.D., Prof. — Dept. of Biol., Univ. of Notre Dame, NOTRE DAME, 

 Ind. 46556, U.S.A. 



a Phenogenetic studies of the ovarian tissue of female-sterile mutants. Drosophila melano- 

 gaster (Diptera) 



h Physiological genetics. Drosophila melanogaster (Diptera) 



BENIRSCHKE, K. M.D., Prof. — Dept. of Pathol., Dartmouth Med. School, HANOVER. 

 N.H. 03755, U.S.A. 



a Study of fetal adrenal development. Das y pus novemcinctus (Edentata), Oedipomidas 

 oedipus (Primates) 



b Chromosome studies. Dasypus novemcinctus (Edentata) 



c Study of placentation, fetal development and drug toxicity on the embryo. Dasypus novem- 

 cinctus (Edentata) 



d Comparative chromosome studies. (Equidae, Camelidae, Artiodactyla) 



BENNETT, Mrs. D. Dr. — Dept. of Anat., Med. Coll., Cornell Univ., 1300 York Ave., 

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



• BENOIT, J. A. A. — Inst. d'Embryol. et Teratol. exper. du C.N.R.S., 49 bis Av. de la Belle 



Gabrielle. 94-NOGENT-sur-MARNE. France 

 a Etude in vitro de I'embryon. Mus musculus (Rodenfia) 



17 



