acid and ol light (absorbed by phytochrome). Pisum sativum (Papilionaceae) 

 b Plant protoplasts: preparation by the use of cell-wall digesting enzymes; culture; cell wall 



regeneration; attempts to achieve fusion. Pisum sativum (Papilionaceae), Avena sativa (Gra- 



mineae), Nicotiana tabacum (Solanaceac) 

 GALUN, E.; Ph.D. - Dept. of Plant Genet., Weizmann Inst, of Sci., P.O. Box 26, REHOVOTH, Israel 

 a Determination of sex expression: genetic and hormonal factors. Cucumis spec. (Cucurbitaceae) 

 b Photo-induced changes in differentiation: structural, biochemical & genetic aspects. Trichoderma 



spec. (Fungi imperfecti) 

 c Dedifferentiation and entry into cell cycle of mesophyll protoplasts. Nicotiana spec, and other 



spp. (Solanaceae) 

 d Development of a system for plant-cell genetics. (Angiospermae) 

 GARBER, Mrs. B. B.; Ph.D., Assoc. Prof. - Depts. of Anat. and Biol., Univ. of Chicago, 1103 East 



57th St., CHICAGO, 111. 60637, U.S.A. 

 a Reconstruction and histogenesis of the brain from dissociated single embryonic cells in vitro: 



specificity of cell associations (cell surface recognition). Coturnix coturnix, Gallus domesticus 



(Aves), Mus musculus (Rodentia) 

 b Cell surface interactions and role of cell ligands in neoplasia (myelogenic and intracranial 



tumors). Mus musculus (Rodentia), Homo sapiens (Primates) 

 GARClA AUSTT, E.; M.D., Assoc. Prof. - Sect, of Exp. Neurol., Inst, of Neurol., Hosp. de Clinicas, 



Piso 2, MONTEVIDEO, Uruguay 

 GARR1DO, O.; M.V., - Inst, de Embriol., Univ. Austral de Chile, Casilla No. 567, VALDIVIA, Chile 

 a Ultrastructural relationship "between the pharyngeal pouch of the adult male and the integument 



of the tadpole. Rhinoderma darwini (Anura) 

 GASSER, R. F.; Ph.D., Prof. - Anat. Dept., Med. Center, Louisiana State Univ., 1542 Tulane Ave., 



NEW ORLEANS, La. 701 12, U.S.A. 

 a Neuromuscular development. Mus musculus, Rattus spec. (Rodentia), Homo sapiens (Primates) 

 b Atlas of developmental stages. Homo sapiens (Primates) 

 c Possible effects of biomechanical fields on cell differentiation during embryogenesis. Same 



species as b 

 GATES, A. H., Jr.; Ph.D. - Div. of Genet., Univ. of Rochester, 260 Crittenden Blvd., ROCHESTER, 



NY 14620, U.S.A. 

 GAY, Miss H.; Ph.D., Prof. - Dept. of Zool., Univ. of Michigan, ANN ARBOR, Mich. 48104, U.S.A. 

 a Molecular structure of chromosomes during genetic activity, especially nucleic acids and proteins 



of heterochromatin and euchromatin (electron microscopy, cytochemistry, autoradiography, 



biochemistry). Drosophila melanogaster (Diptera) 

 GEORGE, J. C; Ph.D., Prof. - Dept. of Zool., Univ. of Guelph, GUELPH, Ont. NIG 2W1, Canada 

 a Ultrastructural studies on the embryo. Lychas tricarinatus (Scorpionidea, Arachnida) 

 b Developmental studies on the supraneural haematopoietic tissue. Petromyzon marinus (Cyclo- 



stomata) 

 GERBI, Miss S. A.; Ph.D. - Div. of Biol, and Med. Sci., Brown Univ., Box G, PROVIDENCE, R.I. 



02912, U.S.A. 

 a Amplified DNA (DNA puffs). Sciara coprophila (Diptera) 

 b Satellite DNAs (in situ hybridization). Same species as a 

 GIBBONS, A. F. E.; Ph.D. - Worcester Found, for Exp. Biol., 222 Maple Ave., SHREWSBURY, MA 



01545, U.S.A. 

 GIBLEY, C. W., Jr.; Ph.D. - Pennsylv. Coll. of Podiat. Med., 804 Pine St., PHILADELPHIA, PA 



19107, U.S.A. 

 GILANI, S. H.; Ph.D. - Dept. of Anat., New Jersey Med. Sch., 100 Bergen St., NEWARK, N.J. 07103, 



U.S.A. 

 a Mechanism of heart morphogenesis (morphology and cytology), and teratogenic action of 



nicotine, lead, and other substances. Gallus domesticus (Aves) 

 GILBERT, P. W.; Ph.D., Prof. - Div. of Biol. Sci., Cornell Univ., ITHACA, NY 14850, U.S.A. ISDB 

 GILBERTSON, D.E.; Ph.D. - Dept. of Zool., Coll. of Biol. Sci., Univ. of Minnesota, MINNEAPOLIS, 



MN 55455, U.S.A. 

 GILES, E. T.; Ph.D., D.I.C., Assoc. Prof. - Dept. of Zool., Sch. of Biol. Sci., Univ. of New England, 



ARMIDALE, N.S.W. 2351, Australia 

 a Development and distribution of Australian species. (Dermaptera) 

 GIRARD, H.; Dr.es Sci. - Dept. of Anat., McMaster Univ., HAMILTON, Ont., Canada 

 GITLIN, G.; Ph.D., Prof. - Dept. of Anat., Hebrew Univ. - Hadassah Med. Sch., P.O.B. 1172, 



JERUSALEM 91000, Israel 

 a Epithelium of the vaginal introitus. Rattus spec. (Rodentia) 



GLADE, R. W.; Ph.D., Prof. - Dept. of Zool., Marsh Life Sci. Bldg., Univ. of Vermont, BURLING- 

 TON, VT 05401, U.S.A. ISDB 

 GLASS, Ms. L. E.; Ph.D., Assoc. Prof. - Dept. of Anat., Sch. of Med., Univ. of Calif., SAN 



FRANCISCO, Calif. 94143, U.S.A. 

 a Maternal macromolecules transferred to developing ovarian oocytes and oviductal or uterine 



embryos; interrelationships with macromolecules synthesized by the oocyte or embryo itself. 



Mus musculus (Rodentia), Lepus spec. (Lagomorpha) 

 b Immunological contraception. 



GLOBERSON, A.; Dr. - Dept. of Cell Biol., Weizmann Inst, of Sci., REHOVOT, Israel ISDB 



a In vitro studies on immune reactivity of cells from the yolk sac and embryonic liver at different 



stages of gestation. Mus musculus (Rodentia) 

 b Studies on the immunological status of newborn spleen. Same species as a 

 GOEL, S. C; Ph.D. - Dept. of Zool., Univ. of Poona, Ganeshkind, POONA 41 1007, India 



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