a. Rigenerazione. Planaria lugubris (Tutbellaria) 



b. Trapianti xenoplastici e differenziazione. Triturus spec, Rana spec. (Am- 

 phibia) 



c. Morfogenesi dell'intestino. Bufo spec. (Anuta) 



d. Morfologia e ultrastruttura dello spermio. Branchiobdella pentodonta 

 (Oligochaeta) 



BONNER, J. T. Ph.D., M.I.I.E. — Dept. of Biol., Princeton Univ., Box 704, 

 PRINCETON, N.J., U.S.A. 

 a. Problems of morphogenetic movements and differentiation. (Acrasiales) 

 BONS, J. — Dept. de Biol.anim., Fac. des Sci., Av. Moulay-Cherif, RABAT, 

 Morocco 

 a. Developpement de l'appareil urogenital. Agama bibroni (Lacertilia) 

 BONTING, S. L. Ph.D. — Section on Cell Biol., Ophthalmol. Branch, Nat. 

 Inst, of Neurol. Diseases and Blindness, Nat. Insts. of Health, BETH- 

 ESDA 14, Md., U.S.A. 



a. Development of Na-K activated ATPase in kidney and lung, in vivo 

 and in vitro. Mus musculus (Rodentia) (in collaboration with C. 

 WAYMOUTH) 



b. Development of Na-K activated ATPase and carbonic anhydrase in ciliary 

 processes from birth till maturity, as correlated with the development of 

 aqueous humor secretion in the eye. Oryctolagus cuniculus ( Lagomorpha) 

 (in collaboration with M. R. CANADY, L. L. CARAVAGGIO and N. M. 

 HAWKINS) 



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

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



a. The development 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. Marphysa regalis, Cirri- 

 formia spirabrancha (Polychaeta) 



b. Larval development and the effect of variations in temperature, salinity, 

 and diet on molting frequency and time of development. Balanus spp. 

 (Cirripedia, Crustacea) 



c. Effects of various temperatures and salinities on molting frequency, larval 

 stages and metamorphosis. Ilea pugilator .Ovalipes ocellatus, Dissodactylus 

 mellitae, Ilea minax, 11. pugnax, Rhithropanopeus harrisii (Decapoda, 

 Crustacea) 



d. Range of salinity and temperature tolerance of larvae from various geo- 

 graphical regions in the United States and Europe. Rhithropanopeus 

 harrisii, Carcinus maenas, Portunus depurator (Decapoda, Crustacea) 



BOPP, M. Dr.rer.nat, Prof. — Inst, fur Botanik, Techn. Hochschule, Herren- 

 ihauser Str. 2, 3 HANNOVER-Herrenhausen, Deutsche Bundesrepublik 



a. Crown-gall development and initiation. Bryophyllum dangremontianum 



b. Development; morphogenesis of protonema. Funaria hygrometrica (Bryo- 

 phyta) 



BORDEN, J. v. d. — Div. of exp. Morphol., Anat.-Embryol. Inst., Univ. of 

 Amsterdam, Mauritskade 61, AMSTERDAM O., Netherlands 

 a. Experiments designed to test relations of inhibitors of embryonic devel- 

 opment to the effect of X-rays. Amby stoma mexicanum (Urodela) , Mus 

 spec. (Rodentia) (in collaboration with H. A. L. TRAMPUSCH) 



BORGHESE, E. M.D.. Dr.Biol.Sci., M.I.I.E., Prof. — 1st. di Anat. topo- 

 grafica, Univ. di Napoli, Via L. Armanni 5, NAPOLI, Italia 



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