MARCUS G. J. Ph.D. — Dept. of Popul. Dynamics, Sch. of Hyg. and Publ. Health, Johns 



Hopkins Univ., 615 N.Wolfe St.. BALTIMORE, Md. 21205, U.S.A. 

 a Endocrine regulation of uterine differentiation and embryo-uterine interaction. (Mammalia) 

 b Regulation of development during early cleavage. Mus musculus (Rodentia) 

 c Regulation of blastocyst metabolism by hormones and by uterine secretions. Rattus cattus, 



Mus musculus (Rodentia) 

 MARGOLIS, G. M.D., Prof. — Dept. of Pathol., Dartmouth Med. School, HANOVER, 



N.H. 03755, U.S.A. 

 a Virus-cell interaction, replication and differentiation. Cricetus auratus, Rattus natalensis, 



R. noruegicus, Mus musculus (Rodentia), Felis domestica, Mustela putorius furo (Carni- 



vora) 

 b Cerebellar hypoplasia induced by postnatal virus infections. Same species as a 

 c Hydrocephalus induced by postnatal virus infections. Cricetus auratus, Rattus noruegicus, 



Mus musculus (Rodentia) 

 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. 



electrophoretic analysis of proteins. Bufo atenarum (Anura) 

 MARIN (LEWIN), Mrs. L. Dr.es Sci. — Lab. d'Embryol. Exper. du Coll. de France et 



du C.N.R.S., 1 1 Place M.Berthelot, 75 PARIS Ve, France • 



a Morphogenese du poumon: 1. determinisme de la maturation des structures specif iques de 



l'epithelium (ultrastructure) ; 2. evolution du metabolisme du tissu pulmonaire (biosynthese 



des lipides, activite enzymatique) ; 3. influence de mesenchymes heterologuessur revolution 



ultrastructurale de l'epithelium. Gallus gallus (Aves) (avec F. DAMERON) 

 MARIN-PADILLA, M. M.D. — Dept. of Pathol., Dartmouth Med. School, HANOVER, 



N.H. 03755, U.S.A. 

 a Golgi study of cerebral cortex development: primordial, granular, and associative neo- 



cortical organization. Felis domestica (Carnivoca) 

 MARINI, Miss M. Dr.Biol.Sci. — 1st. di Anat. Comp., Univ. di Modena, Via Berengario 



14, 41100 MODENA, Italy 

 a Growth and differentiation of the subcommissural organ. (Teleostei) 

 b The differentiation of Rohon-Beard cells in normal development and in regeneration of the 



nervous system. (Amphibia) 

 c The glycogen pattern in the developing nervous system. (Amphibia) 

 d Differentiation of the dorsal cells in the spinal cord. (Teleostei) 

 MARINKOVICH, V. A. M.D. — Dept. of Pediat., Stanford Univ., 300 Pasteur Drive, 



STANFORD, Calif. 94305, U.S.A. 

 MARK, R. F. M.Med.Sc, Doct. Ill — Dept. of Physiol., Monash Univ., CLAYTON, Vict. 



3168, Australia 

 a Regenerating motor nerves and reinnervating muscle (descriptive, histochemical, experi- 

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



(Cyprinidae, Teleostei), Amby stoma spec. (Urodela) 

 MARKELOVA, Mrs. I. W. Cand.med.sci. — Inst, of Med. Genet., Acad, of Med. Sci. of the 



U.S.S.R., Baltiyskaya St. 8, MOSCOW 125315, U.S.S.R. 

 a The evaluation of DNA synthesis in different cell types of human ovary transplanted 



into mouse spleen. Mus musculus (Rodentia), Homo sapiens (Primates) 

 MARKENS, I. S. Drs. — Orthodontic Dept., Dental School, State Univ. of Utrecht, 



Jutfaseweg 7, UTRECHT, Netherlands 

 a Location of the coronal suture in the fetus. Rattus norvegicus (Rodentia) 

 MARKERT, C. L. Ph.D., Prof. — Dept. of Biol., Kline Biol. Tower, Yale Univ., NEW 



HAVEN, Conn. 06520, U.S.A. • 



a Gametogenesis and chromosome behavior. Rana pipiens (Anura) 

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

 c Multiplicity of homologous genes. Various spp. (Pisces) 



d Ontogeny of isozymic patterns. Mus musculus (Rodentia), various spp. (Pisces) 

 e Developmental genetics. Various spp. (Pisces) 



MARKMAN, B. Fil.lic. — Dept. of Zoophysiol., Univ. of Goteborg. GOTEBORG, Sweden 

 MARKOVA. Mrs. L. N. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov 



St. 26, MOSCOW 117133, U.S.S.R. 



a The use of enzyme preparations for the analysis of the role of acetylcholine and biogenic 



monoamines in early embryogenesis. Strong ylocentrotus nudus, Patiria pectinifera 



(Echinoidea) (with G. A. BUZNIKOV) 



MARKS, P. A. Prof. — Dept. of Human Genet, and Developm., Coll. of Phys. and Surg., 



Columbia Univ.. 630 W. 168th St., NEW YORK, N.Y. 10032, U.S.A. • 



MARKWALD, R. R. Ph.D. — Dept. of Anat., Med. Univ. of South Carolina, 80 Barre St., 



CHARLESTON, S.C. 29401, U.S.A. 

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



norvegicus (Rodentia) 

 b Influence of sex hormones upon sexual maturation of the developing brain. Rattus norve- 

 gicus (Rodentia) 



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