additional choroid fissures. Leuciscus bergi (Teleostei) 

 e Inductive transformation of iris and pigment epithelium into lens tissue by agents from lens 



epithelium. Rana temporaria, Xenopus laevis (Anura) 

 LOS, J. A. M.D. - Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61, AMSTERDAM-O., 



Netherlands 

 a Light microscopy, electron microscopy, histochemistry, physiology, and experimental terato- 



genesis of heart development in the embryo. Gallus domesticus (Aves), Mus musculus (Rodentia) 



(with H. M. LAANE and J. A. ROEST) 

 b Cell interactions in the embryonic heart. Gallus domesticus (Aves) (with J. A. ROEST) 

 LOSEVA, Mrs. L. M. - Dept. of Embryol., Leningrad State Univ., Mendeleevsky St.5, 199164 



LENINGRAD, U.S.S.R. 

 a Regeneration. Asterias rubens, Paranimorpha hispida tumida, Ophiura robusta (Asteroidea, 



Ophiuroidea) 

 LOUVET, J. P. Dr.Biol.anim. - Lab. de Zool. Exper., Univ. de Bordeaux I, Av. des Facultes, 33405 



TALENCE, France 

 a Recherches descriptives et experimentales sur la formation de la bandelette embryonnaire. 



Carausius spec. (Phasmida) 

 b Neurogenese. Same species as a 



c Ultrastructure du developpement des pleuropodes. Same species as a 



L0VTRUP (REIN), Mrs. H. Fil.Dr. - Dept. of Zoophysiol., Univ. of Umea\ 90187 UMEA, Sweden 

 a Mitochondrial differentiation during early ontogenesis. Rana spp. (Anura) 



b Guanosine triphosphate (GTP), 5-hydroxytryptophan (5-HT) and gastrulation. Raiia spp. (Anura) 

 L0VTRUP, S. Dr.Phil., Prof. - Dept. of Zoophysiol., Univ. of Ume3, 90187 UMEA, Sweden ISDB 

 a Permeability and osmoregulation. Rana spp. (Anura) (with K. HANSSON MILD) 

 b Cell transformation and cell differentiation. Rana spp. (Anura) 

 c Oxygen uptake during embryogenesis. Tubifex spp. (Oligochaeta), Xenopus laevis (Anura) (with 



U. LANDSTROM) 

 LOWERY, R. S. Ph.D. - Dept. of Biol., City of London Polytechnic, 31 Jewry St., LONDON EC3N 



2EY, England 

 a Relationship between DNA synthesis, mitosis, and differentiation during induction. Xenopus 



laevis (Anura) 

 LUCEY, E. C. A. B.Sc. - Res. Film Unit., Inst, of Anim. Genet., Univ. of Edinburgh, West Mains 



Rd., EDINBURGH EH9 3JN, Scotland, U.K. 

 a Film of normal development. Gallus domesticus (Aves) 

 b Technique of in vitro culture of embryo; descriptive material covering first 72 hours of 



development in vitro. Gallus domesticus (Aves) 

 c Film showing nuclear transfer technique. (Amphibia) 



LUDWIG, K. S. Dr.med., Prof. - Anat. Inst, der Univ., Pestalozzist. 20, 4056 BASEL, Switzerland 

 a Histochemistry of ripening ovarian follicles and the influence of steroid hormones. Rattus spec, 



Mesocricetus auaratus (Rodentia), Homo sapiens (Primates) 

 LUGER, O. Dr. - Inst, fiir Molekularbiol., Abt.Biol., Osterreich. Akad. der Wissensch., Akademiestr. 



26, 5020 SALZBURG, Austria 

 a Control of differentiation in heterokaryons. (Fungi) 

 LUKE, D. A. DOrthRCS - Dept. of Oral Anat., Dental School, Northumberland Rd., NEWCASTLE 



upon Tyne NE1 8TA, England 

 a Development of primary and secondary palate. Homo sapiens (Primates) 

 b Neonatal growth of the skull and teeth. Homo sapiens (Primates) 

 LUKlC, M. L. M.D. - Immunol. Res. Center, Univ. of Belgrade, Vojvode Stepe 458, P. O. Box 979, 



1 1000 BEOGRAD, Yugoslavia 

 a Ontogeny of lymphocytopoiesis and immunocompetent cells in the embryo. Gallus domesticus 



(Aves) 

 b Neuroendocrine regulation of foetal and neonatal immunity. Gallus domesticus (Aves), Rattus 



spec. (Rodentia) 

 LUNDGREN, B. T. fil.kand. - Wenner-Gren Inst., Norrtullsgatan 16, 1 13 45 STOCKHOLM, Sweden 

 a Changes of cell contact during development (electron microscopy). Psammechinus miliaris, 



Echinus esculentus (Echinoidea) 

 b Distribution of exogenous biogenic amines in embryos (high resolution autoradiography). 



Psammechinus miliaris (Echinoidea) 

 c Electron microscopic histochemistry and immunology of acetylcholine esterase and stage specific 



proteins in embryos. Psammechinus miliaris, Echinus esculentus, Paracentrotus lividus 



(Echinoidea) 

 LUPANO, F. M.D. - Dept. of Human Anat., Univ. of Torino, Corso M. D'Azeglio 52, 10126 



TORINO, Italy 

 a Development of the extrinsic eye muscles. Gallus gallus (Aves) 



LUPORINI, P. Dr.Sc.Biol. - 1st. di Zool. e Anat. Comp. dell'Univ., Via A.Volta 4, 56 100 PISA, Italy 

 a Nuclear cycle and differentiation. Euplotes spec. (Ciliata) 

 b Genetics of the life cycle. Euplotes spec. (Ciliata) 

 LURQUIN, P. F. J. Ph.D. - Dept. de Radiobiol., Centre d'Etude de FEnergie Nucleaire, S.C.K., 



2400 MOL, Belgium 

 LUTWAK (MANN), Mrs. C. M.D., Ph.D. - A.R.C. Unit of Reprod. Physiol. & Biochem., Anim. Res. 



Station, 307 Huntingdon Rd., CAMBRIDGE CB3 0JQ, England 

 a Physiology and biochemistry of the early embryo. Rattus rattus (Rodentia), Oryctolagus 



cuniculus (Lagomorpha) 

 b Teratology. Same species as a 



62 



