Bena 12 Bez 



BENAZZI— LENTATI, Mrs G. Lib.Doc. — 1st. di Zool. e Anat. comp. 

 deirUniv., Via A. Volta 4. PISA. Italia. 



a. Fertilization and cytology. Dugesia (several sp.) (Tricladidea, Turbel- 

 laria) 



b. Ovo- and spermatogenesis; fertilization and cytology. Dugesia gono- 

 cephala and allied forms (Tricladidea, Turbellaria) 



BENOIT. J. Dr en Med., Dr es Sc. Prof. — Inst. d'Embryol. et de Morphol. 



exper., Fac. de Med., 1 Place de I'Hopital, STRASBOURG, (Bas- 



Rhin), France 

 a. Development of gonads, hypophysis and hypothalamus. Gallus, Anas 



and Columba (Aves) (in collaboration with I. ASSENMACHER) 

 BENOIT, J. A. A. Agr. d'Anat. — Ecole Nat. Veter., TOULOUSE, 



France. 

 a. Etude de la cinematique tardive des greffons d'organisateur. Triton, 



Pleurodeles, Amblystoma (Urodela) 

 BER, A. Dr, Prof. — Dept of Endocrinol., Fac. of Med., Acad, of Lodz, 



Nowotki 137, LoDZ, Poland. 



(no embryological work in progress) 

 BERG, W. E. A.B., M.S., Ph.D., Prof. — Dept of Zool., Univ. of Cahf., 



BERKELEY 4, Gal., U.S.A. 



a. Studies in protein metabolism of the embryo. III — Peptides; IV — 

 Uptake of radioactive methionine; V — Microbiological assay of amino 

 acids; VI — Enzymes. Rana pipiens and Hyla regilla (Anura) (in col- 

 laboration with R. M. EAKIN and P. B. KUTSKY) 



b. Physiological studies of differentiation. 



1. Enzymes in isolated blastomeres and polar lobes. 2. Large scale 

 segregation of isolated blastomeres for metabohc studies. Mytilus edulis 

 (Mollusca) 



BERGE, J. H. ten — Zool. Lab. der Rijks Univ., Janskerkhof 3, UTRECHT, 

 Holland, 

 a. Determination of Li in eggs, treated with LiCl. Amblystoma (Urodela) 

 (in collaboration with J. J. BEZEM) 



BERGQUIST, H. — Tornblad-Inst. for comp. Embryol., Histol. Dept of the 

 Univ. of Lund, Biskopsgatan 7, LUND, Sweden, (from A^nat. Inst., 

 GOTHENBURG) 

 a. The ontogeny of the diencephalon. (Reptilia and Mammalia) 



BERNSTEIN, M. H. Ph.D. — Dept of Zool., Univ. of Cahfornia, BER- 

 KELEY 4, Cahf.. U.S.A. 



a. Nuclease and nucleic acid metabohsm of embryonic material. Strongylo- 

 centrotus purpuratus (Echinoidea), Rana pipiens (Anura) 



b. Effects of homologous and heterologous nucleoproteins on early develop- 

 ment. (Echinodermata) 



BERRILL, N. J. Ph.D.. D.Sc, Prof. — Dept of Zool., McGill Univ., 

 MONTREAL. Quebec, Canada, 

 a. Relative growth and differentiation, and developmental patterns. Rath- 

 kea, Acaulis, Eudendrium, Tubulatia, Hydtactinia, Syncoryne, Pennaria 

 (Hydroidea, Hydrozoa) 

 BEZEM. J. J. Ir — Zool. Lab. der Rijks Univ., Janskerkhof 3, UTRECHT, 

 Holland, 

 a. Study of alkali-ion equihbrium in eggs and its changes by Li-treatment. 

 (Amphibia) 



