a Role of spinal cord in feather morphogenesis; cutaneous nerve supply; neurotaxis. Gallus 



domesticus (Aves) 

 b Morphogenetic role of early somitic mesoderm in limb bud differentiation. Same species as a 

 c Origin of limb muscles. Gallus domesticus, Coturnix c. japonica (Aves) 



d Scanning electron microscopy of the epidermis during feather morphogenesis. Same species as a 

 e Microcinematographv of skin cells cultured in vitro. Same species as a 



MAYS, U.; Dr.rer.nat. - Zool. Inst, dcr Univ., Badestr. 9, 44 MONSTF.R/Westf., B.R.D. (Germany) 

 a RNA transport in the egg follicle, especially in meroistic ovaries (radioisotopes, electron micro- 

 scopy). Pyrrhocoris apterus (Heteroptera) 

 MAZABRAUD, A.; Dr.3e cycle - Centre de Genet. Molec. du CNRS., 91190 GIF-sur-YVtTTE, 



France 

 a Mecanismes biochimiques de I'oogenese. Xenopus laevis (Anura) 

 MAZHUGA, P. M.; Dr.Biol.Sci., Prof. - Dept. of Cytol. and Histogen., Inst, of Zool., Acad, of Sci. of 



the Ukraine, Vladimirskaya St. 51/53, Apt. 89, 252003 KILV, U.S.S.R. 

 a Principles of genesis, and cytological peculiarities of some derivatives of mesenchyme: the 



peculiarities of endochondral and perichondral osteogenesis. Domestic and laboratory animals 



(Mammalia), Homo sapiens (Primates) 

 b Onto- and phylogenesis of the blood-vascular trunks of the extremities. Same species as a 

 c Development of the blood-vascular bed of the joint capsule. Same species as a 

 d Histogenesis of blood vessels; comparative hemopoiesis. Same species as a 

 e The structural and functional differentiation of cells in chondrogenesis and osteogenesis. 



(Mammalia) 

 f Utilization of cells and matrix substances during enchondral osteogenesis (autoradiography, 



histochemistry, electron microscopy). Oryctolagus cuniculus (Lagomorpha), Rattus spec. 



(Rodcntia) 

 g Osteoblast sources in periosteal and endochondral osteogenesis (autoradiography, cytophoto- 



metry, electron microscopy) 

 MAZZA, M.; Dr.Nat.Sci. - 1st. di Zool. e Anat. Comp. deH'Univ., Via A. Volta 4, 56100 PISA, Italy 

 MAZZUCCO, K.; Dr.phil. - Inst, fiir Krebsforsch., Univ. Wien, Borschkegasse 8a, Postfach 72, 1090 



WIEN, Austria 

 a Influence of collagen on cell proliferation and differentiation. (Rodentia) 



MEER, J. M. van der; M.Sc. - Dept. of Zool., Cathol. Univ., Toernooiveld, NIJMEGEN, Netherlands 

 a Normal development. Callosobruchus maculatus (Coleoptera) 

 b Pattern formation: role of special ooplasmic regions in the spatial and temporal differentiation of 



blastoderm cells; underlying molecular mechanisms. Same species as a 

 MEINIEL (BOUTRON), Mrs. A.; Dr. 3e cycle - Lab. de Biol. Anim., Univ. de Clermont. B.P.45, 



63170 AUBlf.RE, France 

 a Embryonic development of the pineal gland (electron microscopy, Falck and Hillarp method, 



autoradiography). (Reptilia; Aves; Mammalia) 

 b Parapineal organ (same methods as a). Lampetra planeri (Cyclostomata) 

 MEINIEL, R.; Dr.3e cycle - Lab. de Biol. Anim., Univ. de Clermont, B.P. 45, 63170 AUBIERE, 



France 

 a Teratogenic action of parathion: effect on biogenic amines, catecholamines and glycogen (histo- 

 chemistry, electron microscopy). Gallus domesticus (Aves) 

 b Effect of anticholinesterasic properties of organophosphate insecticides on axial deformities 



(light and electron microscopy, histochemistry). Gallus domesticus, Coturnix coturnix (Aves) 

 MELEHOVA, Mrs. O. P. - Chair of Embryol., Biol. Fac, State Univ. of Moscow, Lenin Hills, 



MOSCOW 117234, U.S.S.R. 

 a Processes involving free radicals in normal and pathological development. Rana temporaria, R. 



esculenta (Anura) and other Vertebrata 

 MELLER, K.; Dr.med., Prof. - Inst, fiir Anat. I, Arb.gr. fiir Exper. Cytol., Ruhr-Univ., Universitiits- 



str.150, MA 5/46, Postfach 2148, 463 BOCHUM, B.R.D. (Germany) 

 a Development of retina and central nervous system, especially cerebral cortex and cerebellum 



(electron microscopy, autoradiograpiiy, tissue culture). Gallus domesticus (Aves), Mus muscuius 



(Rodentia) 

 b Protein synthesis of differentiating nerve cells (autoradiography). Gallus domesticus (Aves) 

 c Cell aggregation, cell differentiation, and synaptogenesis in the central nervous system (tissue 



culture, transmission and scanning electron microscopy, autoradiography). Same species as a 

 MENKES, B.; Dr.med., Prof. Lab. de Embriol. Norm, ^i Patol., Acad, de Stiin^e Med., Centr. de 



Cere. Med., Bv. Mihai Viteazul 24, 1900 TIMI^OARA Rumania 



Dept. of Med. Biol., Med. School, P-^a 23 August 1, 1900 TIMI^OARA, Rumania 

 a The role of normal and experimentally induced necrosis in teratogenesis 

 b Cinematographical studies on growth and differentiation processes of the embryonic axial organs. 



Gallus domesticus (Aves) 

 c The influence of exogenous factors on embryonic development; prenatal pathology. Gallus 



domesticus (Aves) 

 d Organogenesis in the embryo. Homo sapiens (Primates) 

 e Development of cerebral vesicles. Gallus domesticus (Aves) 

 MERCIER (PAROT), Mrs. L.; Dr.Sci. - Lab. d'Embryol., U.E.R. Biomcd., 45 rue des Sts.Peres, 75270 



PARIS Cedex 06, France 

 a Tcratogencse par sulfamides hypoglycemiants, antimetabolites. Rattus spec. (Rodentia) (avec 



H. TUCH.MANN-DUPLESSIS) 

 b Intluence de la cortisone sur la gestation et le developpement foetal. Meme espcce comme a 

 c Intluence des alcaloides du Rauwoifia. de la reserpine et de la deserpidine sur le developpement. 



70 



