Bonin 1 5 Bovey 



a. Origine des ganglions craniaux aux depens des placodes epiblastiques. 

 Amia calva (Pisces) 



b. Structure d'un oeuf humain au stade de la ligne primitive. Origine du 

 mesoblaste. Mode de formation du chorion villeux. (Mammalia) 



BONNER, J. T. Ph.D. — Dept of Biol., Princeton Univ., PRINCETON, 

 N.J., U.S.A. 



a. Problems of morphogenetic movements and differentiation in the amoe- 

 boid slime molds. Dictyostelium discoideum (Acrasiales) 



b. Problems of morphogenesis in the slime bacteria. Chondromyces crocatus 

 (Myxobacteriales) 



BOOKHOUT. C. G. A.B., M.A., Ph.D., Prof. — Dept of Zool., Duke Univ., 

 DURHAM, N.C., U.S.A. 



a. The development of Dasybranchus caducus (Polychaeta) from egg to pre- 

 adult. Egg deposition, culture methods, day to day observations and records 

 of living larvae and juveniles, study of fixed and sectioned material. 



b. The development of Marphysa regalis (Polychaeta) from the egg to the 

 sixty-day stage. Egg deposition, culture methods, day to day observations 

 and records of living larvae and juveniles, study of fixed and sectioned 

 material. 



BOREI, H. Ph.Dr — Wenner-Grens Inst, for exper. Biol., Norrtullsgatan 

 16, STOCKHOLM 23, Sweden, 

 a. Respiration of sea urchin eggs in different stages of development. En- 

 zymatic constitution of eggs, kinetics of enzyme action. Paracenttotus 

 lividus, Psammechinus miliatis and other sea urchins (Echinoderms) 



BOTERENBROOD, Miss E. — Hubrecht Lab., Internat. Embryol. Inst., 

 Tanskerkhof 2, and Zool. Lab., Rijks Univ., Janskerkhof 3, UTRECHT, 

 Holland, 

 a. Analysis of the neural induction. Transfer of activating substances in 

 horizontal direction through presumptive ectoderm and the subsequent 

 organisation of a nervous system, (heteroplastic transplantation of 

 ectoderm) Tritutus taeniatus, alpestris and cristatus (Amphibia) (in 

 collaboration with P. D. NIEUWKOOP and Miss A. KREMER) 

 b Developmental physiology of mutants. Drosophila melanogaster (Insecta) 

 (in collaboration with L. E. NIJENHUIS, F. J. OPPENOORTH and 

 N. SPRONK) 



BOUIN, P. Dr, Prof. (Emer.) — VENDRESSE, Ardennes, France. 



BOUNOURE, L. Prof. — Inst, de Zool., Lab. de Biol, gener., Fac. des Sci. 

 de Strasbourg, 12, Rue de l'Universite, STRASBOURG, France, 

 a. Initial development: primordial germ-cells, development of the gonads. 

 (Amphibia) 



BOUR, J. W. H. Med.Drs — Anat.-Embryol. Lab. of the Univ. of Leyden. 

 Fac. of Med., Boerhaavekwartier, Wassenaarseweg, LEIDEN, Holland, 

 a. Development of diencephalon and hypophysis in man and car. (Mam- 

 malia) (in collaboration with J. DANKMEIJER and W. LUYENDIJK) 



BOVEY, R. Dr es Sc. — M.R.C. Biophysics Res. Unit, King's Coll., Strand, 

 LONDON W.C. 2, England. 

 (Member of staff of Agricultural Res. Council) 



a. Etude de la spermiogenese du mouton a l'aide du microscope electronique 

 et du microscope ordinaire. (Mammalia) 



b. Etude a l'aide du microscope electronique de la membrane nucleaire 

 des ovocytes de Locusta mipatoria et Schistocerca gregoria. (Insecta) 



