LACROIX, J. C; Prof. - Lab. de Genet, du Devi., Univ. P. et M. Curie, Centre de Rech. d'lvry, 67 rue 



M. Gunsbourg, 94200 IVRY-sur-SEINE, France 

 a Organization and physiology of lampbrush chromosomes; involvement of lampbrush chromosomal 



RNA in oogenesis and embryogenesis. Pleurodeles poireti, P. waltl (Urodela) 

 LAFARGA, M. A. - Serv. de Embriol. Exp., Dept. of Anat., Fac. de Med., SANTANDER, Spain 

 a Postnatal neurogenesis in hypothalamus and cerebellum (light and electron microscopy). Orycto- 



lagus cuniculus (Lagomorpha), Rattus spec. (Rodentia) 

 LAFONT, R. D. A.; M.Sc. - Lab. de Zool., ficole Norm. Super., 46 rue d'Ulm, 75230 PARIS Cedex 



05, France 

 a Differentiation of imaginal wing discs: nucleic acid metabolism, changes in enzyme titers. Pieris 



brassicae (Lepidoptera) 

 b Ecdysone and juvenile hormone levels during development. Same species as a 

 c In vitro ecdysone binding and action. Same species as a 

 LAING, N. G.; B.Sc. - Dept. of Physiol., Univ. of Edinburgh Med. School, Teviot Place, EDINBURGH 



EH8 9 AG, Scotland, UK 

 a Control of motoneurone numbers in the lumbar enlargement of the embryo; 1. interaction of 



partial amputation with alfa-bungarotoxin paralysis; 2. interaction of alpha-bungarotoxin with 



direct stimulation of hindlimb. Gallus gallus (Aves) 

 LAKSHMI, Ms. M. S.; Ph.D. - Cane. Res. Unit, Univ. Dept. of CUn. Biochem., Royal Victoria Infir- 

 mary, NEWCASTLE-upon-Tyne NEl 4 LP, England 

 a Morphogenetic effects of follicle-stimulating hormone. Gallus domesticus (Aves) (with G. V. 



SHERBET) 

 b Biochemical and biophysical characterization of the cell surface using natural pH gradients, (with 



G. V. SHERBET) 

 c Epigenetic mechanisms and paraneoplastic phenomena, (with G. V. SHERBET) 

 LALLIER, R. A.; D.Sc. - Station Marine de Villefranche-sur-Mer, Univ. de Paris VI, 06230 



VILLEFRANCE SUR MER, France 

 a Biochemical aspects of embryonic determination (studies of animalizing and vegetalizing agents). 



Paracentrotus lividus (Echinoidea) 

 LAMERS, W. H. - Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61, 1092 AD 



AMSTERDAM-0., Netherlands 

 LANDAUER, W. f Ph.D., Prof. - Dept.of Human Genet, and Biometry, Univ. CoU. London, LONDON 



NWl 2HE, England 

 LANDSTROM, U. - Dept. of Zoophysiol., Univ. of Umea, S 901 87 UMEA, Sweden 

 a Cell transformation and cell differentiation. Xenopus laevis (Anura), Ambystoma mexicanum 



(Urodela) (with S. and H. L0VTRUP) 

 LANG, A.; M.Sc. - Inst, of Cell Biol., Swiss Fed. Inst, of Technol., Honggerberg, 8093 ZURICH, 



Switzerland 

 a In vitro myogenesis. Drosophila spec. (Diptera) 

 LANOT, R.; D.Sc. - Lab. de Zool., Fac. des Sci., Univ. de Nancy I, CO. 140, 54037 NANCY Cedex, 



France 

 a Morphology of normal and experimentally produced cell degeneration in the axial organs. Gallus 



gallus (Aves) 

 b Cytology and biochemistry of tail bud regression. Same species as a 

 LANSDOWN, A. B. G.; Ph.D. - Dept. of Pathol., Wyeth Labs. Ltd., TAPLOW, Berks., England 

 a Effect of viral infections on foetal and neonatal development. Rattus spec, Mus musculus (Ro- 

 dentia) 

 b Effect of pancreatitis on pregnancy 



c Effect of prenatal growth retardation on postnatal development 

 d Effect of exposure to anaesthetics (halo thane, nitrous oxide) on pregnancy. Rattus spec. Homo 



sapiens and other spp. (Mammalia) 

 LARDE, Ms. P.; Dr.med. - Lab. d'Embryol., Univ. de Nancy I, B.P.1080, 54019 NANCY Cedex, 



LARINK, O.; Dr. - Zool. Inst, der Techn. Univ., Pockelstr. 10a, 3300 BRAUNSCHWEIG, BRD 



(Germany) 

 LA SPINA (D'ANNA), Ms. R.; D.Sc. - Zool. Inst., Univ. of Palermo, Via Archirafi 18, 90123 



PALERMO, Italy 

 a Fine structure of unfertilized eggs and egg fragments. Ascidia malaca, Phallusia mamillata (Asci- 



diacea) 

 b Analysis of colour pattern ; ultrastructure of chromatophores. Discoglossus pictus (Anura) 

 LASSAK, H. F.; Dipl.Biol. - Inst, fur Allgem. Biol, der Univ., Universitatsstr. 1, 4000 DUSSELDORF, 



BRD (Germany) 

 a Characterization of RNA and RNA synthesis, especially in testis development; correlation to gene 



products, fertility and regulation. Drosophila hydei (Diptera) 

 LASSALLE, B.; D.Sc. - Lab. de Morphogen. Anim., Univ. des Sci. et Techn. de Lille, B.P. 36, 59650 



VILLENEUVE D'ASCQ, France 

 a Surface potential during growth and regeneration. (AnneUda; Amphibia) 

 b Factors of regenerative morphogenesis (nervous system, tissue contacts) 

 LASSEGUE, Ms. M.; Dr.biol.anim. - Lab. de Zool. A, Inst, de Biol. Anim., Univ. de Bordeaux I, Av. 



des Facultes, 33405 TALENCE, France 

 a Genetics of histocompatibiUty : in vivo and in vitro incompatibility reactions, ontogeny, molecular 



basis, genetic determinations and relations. Eisenia foetida (Oligochaeta), (Sipuncula) 

 LATTAUD, C. - Lab. Sex. et Reprod. des Invertebr., Univ. Paris VI (P. et M. Curie), Bat.A, 7e etage, 



4 place Jussieu, 75230 PARIS Cedex 05, France 



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