a. Myogenesis in the embryo. Gallus domesticus (Aves) 

 MASHUGA, P. M. Dr.Biol.Sci. — Dept. of Cytol. and Histogenesis. Inst, 

 of Zool., Acad, of Sci. of the Ukraine, Vladimirskaya St. 55, KIEV 30. 

 U.S.S.R. 



a. Principles of genesis, and cytological peculiarities of some derivatives of 

 mesenchyme: the peculiarities of endochondral and perichondral osteo- 

 genesis. Domestic and laboratory animals (Mammalia) , Homo sapiens 

 (Primates) 



h. Onto- and phylogenesis of the blood-vascular trunks of the extremities. 

 Domestic and laboratory animals (Mammalia), Homo sapiens (Pri- 

 mates) 



c. The development of the blood-vascular bed of the joint capsule. Domes- 

 tic and laboratory animals (Mammalia), Homo sapiens (Primates) 



d. Histogenesis of blood vessels; comparative hemopoiesis. Domestic and 

 laboratory animals (Mammalia), Homo sapiens (Primates) 



MASLOW, D. E. B.S. — Dept. of Biol, School of Dental Med., Univ. of 

 Pennsylvania. PHILADELPHIA, Pa. 19104, U.S.A. 

 a. Myogenesis. (Vertebrata) 

 MASSART. C. M.D.. Prof. — Inst, of Anat. and Histoembryol., Univ. of 



Pisa, Via Roma 33, PISA. Italia 

 MASSON (ROZIER), Mrs. CI. Lic.es Sci. — Lab. de Zool. Gener., Fac. 

 des Scis. de Nancy, 30 Rue Ste Catherine, NANCY. France 

 a. Regeneration. Dendrocoelum lacteitm (Turbellaria) 

 MASTROLIA. Miss L. Dr.Biol.Sci., — 1st. di Zool. deirUniv.. Viale Regi- 

 na Elena 324 (al Policlinico) . ROMA, Italia 

 a. Tissue culture of embryonic adrenal gland. Gallus domesticus (Aves) 

 h. Growth and differentiation of blood island in vivo and in vitro. 

 Gallus domesticus (Aves) (in collaboration with H.MANELLI) 

 MASUI. Y. D.Sc. — Dept. of Biol., Fac. of Sci.. Konan Univ., Okamoto, 

 Motoyama-cho, Higashi-nada-ku, KOBE, Japan 

 a. Studies of the induction problem in early development. (Amphibia) 

 h. Analysis of proteins of subcellular components of embryonic cells. 

 (Amphibia) 

 MATeTKA, M. MUDr., C.Sc. — 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, incl. Homo sapiens) 

 h. The morphogenesis of the genital organs studied on the basis of expc-- 

 imental embryology. (Amniota) 

 MATHUR. R. S. B.Sc, M.Sc, Ph.D. — Dept. of Zool., Univ. of Rajas- 

 than, JAIPUR. India 



a. Studies on spermatogenesis (morphology, cytochemistry, physiology 

 and genetics). Meriones hurrianae (Zapodidae, Rodcntia), Funambu- 

 lus pennanti (Sciuridae, Rodentia), Rattus rattus rufescens (Muridae, 

 Rodentia), Rhinopoma kinneari (Microchiroptera, Insectivora) , Suncus 

 murinus sindensis, (Soricidae, Insectivora) 



b. Effects of hormones on developing accessory reproductive organs. (In- 

 sectivora. Rodentia) 



MATSUMOTO, J. B.S.. D.Sc. — Dept. of Biol., Keio Univ., YOKOHA- 

 MA-Hoyoshi, Japan 



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