MARGOLIS, G.; M.D., Prof. - Dept. of Pathol., Dartmouth Med. Sch., HANOVER, NH 03755, 



U.S.A. 

 MARIANO, Miss M. I. - Inst, de Biol., Univ. Nac. de Tucuman, Chacabuco 461, S. M. de TUCUMAN, 



Argentina 

 a Nuclear transplantation (early stages until neurulation): 1. haploid and diploid nuclei; 2. ultra- 

 structure of haploid embryos. Bufo arenarum (Anura) 

 b Vitelline envelope: ultrastructural changes involved in fertilization. Same species as a 

 MARIN-PADILLA, M.; M.D. - Dept. of Pathol., Dartmouth Med. Sch., HANOVER, NH 03755, 



U.S.A. 

 MARK, R. P.; Doct. Ill, Prof. - Dept. of Behav. Biol., Austr. Natl. Univ., CANBERRA, A.C.T. 2600, 



Australia 

 a Regenerating motor nerves and reinnervating muscle (descriptive, histochemical, experimental, 



and electrophysiological). Astronotus ocellatus (Cichlidae), Carassius carassius (Cyprinidae, 



Teleostei), Ambystoma spec. (Urodela) 

 MARKERT, C. L.; Ph.D., Prof. - Dept. of Biol., Osborn Mem. Lab., Yale Univ., NEW HAVEN, 



CT 06520, U.S.A. 

 a Gamete maturation, fertilization, and early development. Mus musculus (Rodentia) 

 b Ontogeny of isozymic patterns. Mus musculus (Rodentia), Various spp. (Pisces) 

 c Developmental genetics. Various spp. (Pisces) 

 d Nuclear transplantation. Same species as a 



e Developmental genetics studied in allophcnic or mosaic combinations. Same species as a 

 MARKS, P. A.; Prof. - Dept. of Human Clenet. and Developm., Coll. of Phys. and Surg., Columbia 



Univ., 630 W. 168th St., NEW YORK, NY 10032, U.S.A. 

 a Differentiation in normal and transformed erythropoietic cells; regulation of erythropoiesis. Mus 



musculus (Rodentia), Homo sapiens (Primates) 

 MARKWALD, R. R.; Ph.D. - Dept. of Anat., Texas Techn. Univ., LUBBOCK, TX 79409, U.S.A. 

 a Teratogenic influences of a variety of known teratogens upon heart development. Rattus 



norvegicus (Rodentia) 

 b Matrix-mediated genetic expression in cardiogenesis. Same species as a 

 MARTIN, A. H.; Ph.D. - Dept. of Anat., Health Sci. Ctr., Univ. of W. Ontario, LONDON, Ont. N6A 



5C1, Canada 

 a Development, morphology, and histology of the central nervous system (light microscopy). Gallus 



domesticus (Aves), Mus musculus (Rodentia) 

 b Teratogenic effect of various techniques and agents on the developing embryo. Same species as a 

 MARTIN, Ch.B., Jr.; M.D., Prof. - Dept. of Obstet. and Gynecol., Univ. of S. Calif., Women's Hosp. 



5K-22, 1240 N. Mission Rd., LOS ANGELES, CA 90033, U.S.A. 

 a Fetal cardiovascular physiology, particularly responses to stress. Macaca mulatta (Primates) 

 b Fetal breatliing movements, control and factors. Same species as a 

 c Physiology of the uteroplacental and umbilical circulations. Same species as a 

 MARTIN, Mrs. G. R.; Ph.D. - Dept. of Pediat., Univ. of California, SAN FRANCISCO, CA 94143, 



U.S.A. 

 MASCARENHAS, J. P.; Ph.D., Prof. - Dept. of Biol. Sci., State Univ. of New York, 1400 Washington 



Ave., ALBANY, NY 12222, U.S.A. 

 a Developmental biochemistry of pollen. Tradescantia paludosa (Commelinaceae) 

 MASLOW, D. E.; Ph.D. - Dept. of Exp. Pathol., Roswell Park Mem. Inst., 666 Elm St., BUFFALO, 



N. Y. 14203, U.S.A. 

 a The adhesion of cells to different cellular and non-cellular substrates. Mus spec. (Rodentia), 



Homo sapiens (Primates) 

 b Specificity of interactions during aggregation of developing and tumor tissues and ceUs. (Aves), 



Mus spec. (Rodentia), Homo sapiens (Primates) 

 c Role of cell movement in aggregation; eocperimental and model systems. (Aves) 

 MASSOVER, W. H.; M.D., Ph.D. - Div. of Biol, and Med. Sci., Brown Univ., PROVIDENCE R.I. 



02912, U.S.A. 

 a Subcellular differentiation of the oocyte (including experimental manipulation). (Amphibia) 

 b Form and function of normal and neoplastic ferritins. Mus musculus (Rodentia) 

 MASTERS, E. M.; Ph.D., Assoc. Prof. - Dept. of Anat., Jefferson Med. Coll., 1020 Locust St., 



PHILADELPHIA, PA 19107, U.S.A. 

 a Maturation of alveolar cells, production of surfactant, morphology and secretion in organ and cell 



culture, in normal and teratogen-induced abnormal lung. Rattus norveuicus (Rodentia) 

 MASUI, Y.; Ph.D., Assoc. Prof. - Ramsay Wright Zool. Labs., Dept. of Zool., Univ. of Toronto, 25 



Harbord St., TORONTO, Ont. M5S 1 AI , Canada 

 a Cytoplasmic control of nuclear activity in oocyte meiosis and early development. Rana pipiens, 



Xenopus laevis (Anura), Triturus viride.scens (Urodela) 

 b Repair DNA syntiicsis in ovarian oocytes. Mus nnisculus (Rodentia) 

 c Chromosome condensation and decondensation during egg maturation and activation. Rana 



pipiens, Xenopus laevis (Anura), Mus musculus (Rodentia) 

 MATHUR, J. K.;Ph.D. ^ Dept. of Zool., S.G.R.R. (P.G.) Coll., DEHRADUN 248001, India 

 a Limb teratology. Calotes versicolor (Lacertilia) 



b Morphology, histochemistry, and cell deatli in developing limbs. Agama himalayensis (Lacertilia) 

 c Patterns of cell death in developing Umbs. Columba livia (Aves) 

 MATSUMOTO, IL; Pli.D. - Dept. of Agric. Chem., Kyoto Univ., KYOTO, 606 Japan 

 a Role of chromosomal proteins, especially non-histone proteins, in cotyledon development. Pisum 



sativum (Papilionaceae) 

 b Inhibitory mechanism of aluminium for root elongation. Same species as a 



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