BENAZZI, M. M.I.I.E., Prof.ord. — 1st. di Zool. e Anat. comp. dell' Univ., 

 Via A. Volta 4, PISA, Italia 



a. Fertilization, pseudogamy, polyploidy and heredity. (Tricladidea, Tur- 

 bellaria) 



b. Hybrids. Ttiturus vulgarus x T. cristatus, T. italicus and T. helveticus 

 (Urodela) 



c. Action of X-rays on development. (Planariidae, Turbellaria) 

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



Via A. Volta 4, PISA, Italia 

 a. Ovo- and spermatogenesis; fertilization and cytology. (Tricladidea, 

 Turbellaria) 

 BENDER, H. A. A.B., M.S., Ph.D. — Dept. of Biol., Univ. of Notre Dame, 

 NOTRE DAME, Ind. U.S.A. 

 a. Studies of the ovarian tissue in pseudoallele mutations affecting fertility. 

 Drosophila melanogaster (Diptera) 

 BENGMARK, S. — Dept. of Anat., Univ. of Goteborg, GoTEBORG SV, 

 Sweden 

 a. Derivation of prostatic gland. Homo sapiens, Rattus spec. (Mammalia) 

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

 HANOVER, N.H., U.S.A. 



a. Study of fetal adrenal development. Dasypus novemcinctus (Edentata), 

 Oedipomidas oedipus (Primates) 



b. Chromosome studies. Dasypus novemcinctus (Edentata) 

 BENNETT, Miss. D. Ph.D. — Dept. of Zool., Columbia Univ., Broadway 



and 116th St., NEW YORK 27, N.Y., U.S.A. 

 a. Effects of lethal mutant alleles at the T-locus, studied morphologically, 



in tissue culture, and with paper chromatography. Mus musculus (Ro- 

 de ntia) 

 BENOIT, J. Dr. en Med., Dr. es Sci., Prof . — Lab. d'Histophysiol, Coll. de 



France, 4 Avenue Gordon Bennet, PARIS 16e, France 

 BENOIT, J. A. A. M.I.I.E. — Lab. d'Embryol. et Teratol. exper. du 



C.N.R.S., 49bis Avenue de la Belle Gabrielle, NOGENT sur Marne 



(Seine), France 

 a. Etude de la chronologie et du mecanisme de l'induction du cartilage 



otique. Gallus gallus (Aves) 

 BER, A. Dr., Prof. — Beilinson Hospital, PETAH-TIKVA, Israel 



a. Development of eye reaction to vitamin B t . Hyla spec, Bufo spec. 



(Anura) 

 BERG, G. G. Ph.D. — Dept. of Radiation Biol., School of Med. and Dent., 



Univ. of Rochester, P.O. Box 287, Sta. 3, ROCHESTER 20, N.Y., 



U.S.A. 

 a. Developmental and adaptive changes in enzymes (trimetaphosphatase, 



polyphosphatase) in the embryonic digestive tract and extraembryonic 



membranes. Gallus gallus (Aves), Mus musculus alb. (Rodentia) 

 BERG, W. E. Ph.D., M.I.I.E., Prof. — Dept. of Zool., Univ. of California, 



BERKELEY 4, Cal., U.S.A. 

 BERGQUIST, H. Ph.D., M.I.I.E. — Zool. Inst., Univ. of Gothenburg, Fjar- 



de Langgatan 7B, G5TEBORG-SV, Sweden 



a. Experimental investigations on the neural tube. (Vertebrata) 



b. Ultramicroscopical investigations on the integument. Homarus vulgaris 

 (Crustacea) 



17 



