MASTROLIA, Ms. L.; Dr.biol.sci. - 1st. di Zool. "Federico Raffaele", Viale dell'Universita 32, 00161 



ROMA (7), Italy 

 MATEJKA^M.; Dr.Med., C.Sc. - Inst, of Histol and Embryol., Charles Univ., Karlovarska 48, 30167 



PLZEN, Czechoslovakia 

 a Morphogenesis of the genital organs from an evolutionary standpoint. (Amniota, incl. Homo 



sapiens) 

 MATO, J.M.; Drs. - Zool. Lab., Unit of Cell Biol, and Morphogen., State Univ., Kaiserstr. 63, 



LEIDEN, Netherlands 

 a Role of cyclic nucleotides during chemotaxis. Dictyostelium spec. (Acrasiales) 

 MATUSZEWSKI, B.; Ph.D. - Dept. of Cytol., Zool. Inst., Warsaw Univ., Krak. Przedmies'cie 26/28, 



00-927/1 WARSZAWA, Poland 

 a Oogenesis. (Cecidomyiidae, Diptera), (Scarabeidae, Coleoptera) 



b Extrachromosomal DNA and its role in oogenesis. (Staphylinidae & Gyrinidae: Coleoptera) 

 MAUCHAMP, B. L.; Ing. - Lab. de Zool., ficole Norm. Superieure, 46 rue d'Ulm, 75230 PARIS 



Cedex 05, France 



- INA Paris-Grignon, Centre Grignon, 78 THIVERVAL-Grignon, France 

 a Hormonal control of wing imaginal disc development. Pieris brassicae (Lepidoptera) 

 b Biochemistry of diapause. Same species as a 

 c Ultrastructural aspects of scale development. Same species as a 

 MAUGER (GIRARD), Ms. A.; D.Sc. - Lab. de Zool. et Biol. Anim., Univ. Sci. et Med. de Grenoble, 



B.P.53, Centre de Tri, 38041 GRENOBLE, France 

 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 Microcinematography of skin cells cultured in vitro. Same species as a 

 MAYER, R. J.; Ph.D. - Dept. of Biochem., Univ. Hosp. Med. School, Clifton Blvd., NOTTINGHAM 



NG7 2Uh' England , ^ , ^ ^-r 



a Turnover of lipogenic enzymes and casein during hormonally stimulated mammary gland dit- 



ferentiation and in adipose tissue in vitro. Oryctolagus cuniculus (Lagomorpha), Ovis aries 



(Artiodactyla) 

 b Studies on mitochondrial enzyme turnover (cytochrome oxidase and monoamme oxidase) in 



regenerating liver and in neonatal deveopment. Rattus spec. (Rodentia) 

 MAYS, U.; Dr.rer.nat. - Zool. Inst, der Univ., Badestr. 9, 44 MUNSTER/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-YVETTE, 



France 

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

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



Ukraine, Vladimirskaya St.51/53, Apt.89, 252003 KIEV, 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 



(Mammaha), 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 enchondrial osteogenesis (autoradiography, 



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



(Rodentia) 

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



metry, electron microscopy) 

 h Blood capillaries and reticulo-endothelial system of the bone marrow (cytology, electron micro- 

 scopy, tissue culture, autoradiography, cytophotometry) 

 i Structural mechanisms of endochondral process (histology, histochemistry, autoradiography) 

 j Transformation of blood capillaries into sino-capillar system of the bone marrow (cytology, 



histology) 

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



WIEN, Austria 

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

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

 a Normal development. CaUosobruchus 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), Ms. A.; D.Sc. - Lab. de BioL Anim., Univ. de Clermont, B.P.45, 63170 



AUBIERE, France 

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



autoradiography). (Reptilia; Aves; Mammalia) 

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

 MEINIEL, R.; D.Sc. - Lab. de Biol. Anim., Univ. de Clermont, B.P.45, 63170 AUBIERE, France 

 a Effect of anticholinesterasic properties of organophosphate insecticides on morphogenesis (light 



70 



