a. Action teratogene de I'uree. (Amphibia) (en collaboration avec A. DOL- 

 LANDER) 

 MARIN, G. Dr — 1st. di Zool. e Anat. comp., Fac. di Sci., Via Loredan 

 10. PADOVA, Italia 

 a. Early development and sex differentiation of gonads. Gallus spec. (Aves) 

 MARIN— LEWIN. Mrs L. Lic.es Sci. — Lab. d'Embryol. exper. du Coll. 

 de France, et Lab. d'Embryol. et de Teratol. exper. du C.N.R.S., 11 

 Place Marcelin Berthelot. PARIS Ve, France 

 a. Etude du comportement du foie embryonnaire cultive in vitro. Gallus 

 gallus (Aves) 

 MARKERT. C. L. Ph.D.. M.I.I.E. — Dept of Biol., The Johns Hopkins 

 Univ.. Charles and 34th Sts. BALTIMORE 18. Md., U.S.A. 



a. The role of genotype and embryological history in the utilization of 

 specific substrates for melanogenesis. Mus musculus (Rodentia) 



b. Influence of cell population on melanoblast differentiation. Mus musculus 

 (Rodentia) 



c. Changes in synthetic ability during cellular differentiation. Gallus do-' 

 mesticus (Aves), Mus musculus (Rodentia) 



d. Ontogeny of enzymes. Gallus domesticus (Aves), Mus musculus (Ro- 

 dentia) 



MARSLAND, D. A. B.Sc, M.S.. Ph.D. — Biol. Dept, Washington Square 

 Coll. of Arts and Sci., New York Univ., Washington Square. NEW 

 YORK 3, N.Y., U.S.A. 

 a. Induction of premature cleavage furrows by centrifngation. Arbacia 

 punctulata (Echinoidea) 

 MARTIN, Miss B. A. M.A., Ph.D. — Dept of Biol., Brooklyn Coll., 

 Bedford Ave and Ave H. BROOKLYN 10, N.Y., U.S.A. 

 a. Cytology and embryology. (Insecta) 

 MARTIN, B. F. M.D., B.Ch., B.Sc. — Dept of Anat., Fac. of Med., Univ. 

 of Sheffield, SHEFFIELD, England 

 a. Histochemical studies. (Mammalia) 

 MARTINET, Mrs M. Dr es Sci. — Lab. d'Embryol.. Fac. de Med., 45 Rue 

 des Sts Peres, PARIS Vie, France 

 a. Infuence teratogene des intoxications. Mus rattus (Rodentia) 

 h. Influence teratogene de I'hyperv'itaminose A. Mus rattus (Rodentia) 

 MASUDA, H. B.Sc. — Dept of Biol.. Naniwa Univ.. Sakai. OSAKA, 



Japan 

 MASUI, Y. — Biol. Lab.. Dept of Sci.. Konan Univ.. KOBE, Japan 



a. Influence of LiCl upon the inductive specificity of the organizer. Triturus 

 spec, Hynobius spec, Rana spec, Bu[o spec (Amphibia) 

 MATEJKA, M. Dr — Inst, of Histol. and Embryol., Fac of Med., Charles 

 Univ., Karlovarska 48. PLZEN, Czechoslovakia 

 a. The morphogenesis of the genital organs from the standpoint of evolu- 

 tionary morphology. (Amniota, including Homo sapiens) 

 MATHER, W. B. Ph.D. — Zool. Dept, Univ. of Queensland. George St, 

 BRISBANE, Queensland, Australia 

 (no embryological work in progress) 

 MATSUMOTO, J. M.A. — Biol. Lab.. Keio Univ.. YOKOHAMA. 

 Hiyoshi, Japan 

 a. Correlation between pigment formation and fluorescent substances dur- 

 ing post-embryonal stages. Carassius auratus (Teleostei) 



71 



