Austin 9 Bali 



b. Chemical and physical factors involved in the sperm penetration of the 

 zona pellucida. Mus rattus and Oryctolagus cuniculus (Rodentia) (in 

 collaboration with A. W. H. BRADEN) 



c. Development of blastocysts and isolated blastomeres after transplan- 

 tation. Induction of parthenogenesis. Investigations on the external mi- 

 gration of gametes. Oryctolagus cuniculus (Rodentia) (in collaboration 

 with A. W. H. BRADEN) 



AUSTOKER, Mrs J. B.Sc. Hon. — Dept of Zool.. Univ. of the Witwaters- 

 rand, Milner Park. JOHANNESBURG, S. Africa, 

 a. The development of the mammary glands. Elephantulus (Mammalia) 



AVEL. M. Dr. Prof. — Fac. des Sci. de Bordeaux, 40 Rue Lamartine, 

 TALENCE (Gironde), France. (no data received) 



AVIS, F. R. A.B. Brown Univ. — Roscoe B. Jackson Mem. Lab.. BAR 

 HARBOR, Me., U.S.A. 



a. Study of intrauterine influences upon embryonic growth, differentiation 

 and organogenesis by means of reciprocal ova transplants by surgical 

 procedure between races known to differ genetically in adult body size, 

 and axial skeleton. Oryctolagus cuniculus (Rodentia) (in collaboration 

 with P. B. SAWIN) 



b. Study of effects of hormone and carcinogenic agents upon growth of 

 fertilized eggs in u t e r o and ex u t e r o. Oryctolagus cuniculus 

 (Rodentia) (in collaboration with P. B. SAWIN) 



BACKSTROM, S. A. A. — Wenner-Grens Inst, for exper. Biol., Norrtulls- 



gatan 16, STOCKHOLM 23, Sweden, 

 a. Morphological studies on lithium-treated developing eggs. Psammechinus 



miliaris (Echinoidea) 

 BAFFONI, G. M. Dr — Zool. Dept of the Univ. of Cagliari, Viale B. 



Bartolomeo 1, CAGLIARI, Sardegna, Italy. 



a. Reaction of nervous cells to periphery. (Amphibia) 



b. Involution of germinal cells. (Crustacea) 



c. Cytomorphosis of nervous cell (Mauthner cell) in normal development. 

 (Amphibia, Pisces) 



d. Effects of thyroid gland on nervous system in the metamorphosis. 

 (Amphibia) (in collaboration) 



e. A study on hyperregeneration of tail. (Amphibia) (in collaboration) 

 BAGInSKI, S. Dr Med., Prof. — Inst, of Histol. and Embryol., Med. Acad., 



Narutowicza Str. 60, LODZ, Poland. 



(no data received over this year) 

 BAILEY, J. R. Ph.D. — Dept of Zool., Duke Univ., DURHAM. N.C., 



U.S.A. 

 a. Organogenesis during development and changes at metamorphosis. 



Ichthyomyzon (species undescribed) (Cyclostomata, Pisces) (in col- 

 laboration with E. C. HORN) 

 BAKER, R. C. B.A., M.Sc Ph.D., Prof. — Dept of Anat., Ohio State Univ.. 



COLUMBUS 10, Ohio, U.S.A. 



(no data received over two years) 

 BALINSKY, B. I. Dr of Biol. Sci. — Dept of Zool., Univ. of the Wit- 



watersrand, Milner Park, JOHANNESBURG, S. Africa, 

 a. The part played by growth and cellular migration in the formation of 



organ rudiments. Xenopus laevis (Anura, Amphibia) and Elephantulus 



myurus (Mammalia) 



