a Control of sex differentiation. Leptinotarsa decemlineata (Coleoptera) 



RICHARDS, G. P. - Dept. of Genet., Univ. of Cambridge, Downing St., CAMBRIDGE CB2 3EH, 



England 

 RICHTER, K. H.; Ph.D. - Orthop. Klinik, Univ. Marburg, Schiitzenstr. 49, 355 MARBURG, B.R.D. 



(Germany) 

 a Control of fibroblast proliferation by chalones. Homo sapiens (Primates) 

 RICKENBACHER, J.; Dr.med., Prof. - Dept. of Anat., Histol., and Embryol., Univ. of Zurich, 



Gloriastr. 19, 8006 ZURICH, Switzerland 

 a Functional and morphological differentiation of circulatory system. Gallus gallus (Aves) 

 RICKWOOD,D.; Ph.D. - Dept. of Biol., Univ. of Essex, Wivenhoe Park, COLCHESTER, C04 3SQ, 



England 

 a Molecular aspects of development at the level of gene transcription. Dictyostelium discoideum 



(Acrasiales) 

 RIEHL, R.; Dr. - Inst, fur AUgem. und Spez. Zool., Stephanstr. 24, 6300 GIESSEN, B.R.D. 



(Germany) 

 a Oogenesis, stages of oocytes, spermatogenesis (light, transmission and scanning electron micro- 

 scopy, histo- and ultrahistochemistry). Branchiostoma lanceolatum (Cephalochordata) 

 b Oogenesis, stages of oocytes, egg envelopes, follicle epithelium, formation of yolk (light and 



transmission electron microscopy, histochemistry, autoradiography, labelling of myofer). 



Heterandria formosa (Teleostei) 

 RINALDI, Ms. A.M.; Dr.Biol. - 1st. di Anat. Comp., Univ. di Palermo, Via Archirafi 20, 90123 



PALERMO, Italy 

 a Negative nuclear control of RNA synthesis in early development. Paracentrotus lividus 



(Echinoidea) 

 b Mitochondrial DNA replication. Same species as a 

 c Mitochondrial RNA synthesis during development. Same species as a 

 RINAUDO, M. T.; Prof. - Inst, of Biochem., Univ. of Turin, Via Michelangelo 27, 10126 TORINO, 



Italy 

 a Protocollagen proline hydroxylase in embryonic eye, cartilage, and skin. Gallus domesticus 



(Aves) 

 b B-hydroxybutyrate dehydrogenase in embryonic and neonatal brain. Same species as a 

 c Glucose-6-phosphatase and fructosediphosphatase in the embryonic heart. Same species as a 

 RIPOLL, P.; Ph.D. - Sect. Devi. Genet., Inst, of Genet. CSIC, Ctr. of Molec. Biol., Univ. Autonoma de 



Madrid, Canto Blanco, MADRID 34, Spain 

 a Clonal behaviour of zygotic lethals in imaginal discs. Drosophila melanogaster (Diptera) 

 b Somatic cell genetics. Same species as a 



RISNES, S. - Dept. of Anat., Dent. Fac, Univ. of Oslo, P.O.Box 1052, Blindern, OSLO 2, Norway 

 ROBECCHI GIACOBINI, M. G.; M.D. - Dept. of Human Anat., Univ. of Torino, Corso M.D'Azeglio 



52, 10126 TORINO, Italy 

 a Development of motor unit under experimental conditions (electron microscopy). Gallus 



domesticus (Aves) 

 b Development of motor unit and myo-tendinous junctions under normal and experimental 



conditions (histochemistry, ultrastructure). Same species as a 

 ROBERT, L.; M.D. - Lab. de Biochim. du Tissue Conjonct., Univ. de Paris XII, 6 rue du Gen.Sarrail, 



94000 CRfiTEIL, France . 



a Differentiation of mesenchymal tissues, cornea, and aorta; regulation of the biosynthesis of 



intercellular macromolecules: collagen, elastin, proteoglycan, and structural glycoprotems. 



(Demospongiae, Porifera), Gallus domesticus (Aves), Mus musculus, Rattus spec, Sus domesticus. 



Bos taurus, Homo sapiens (Mammalia) 

 b Molecular mechanism of cell free recognition (transplantation biology); role of structural glyco- 

 proteins. Mus musculus (Rodentia) 

 ROBERTS, A. M.; Ph.D. - Dept. of Zool., Univ., BRISTOL BS8 lUG, England 

 a Growth, anatomy and physiology of Rohon-Beard cells and sensory trigeminal ganglion cells in 



the embryo relating to development of behaviour. Xenopus laevis (Anura) 

 b Organisation of hind-brain and spinal cord for the control of swimming in the late embryo 



(anatomy, electrical recording). Same species as a and others (Amphibia) 

 ROBERTSON (PATON), Ms. E. M. - Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., 



EDINBURGH EH9 3JN, Scotland, U.K. 

 a Development of imaginal buds. Drosophila spec. (Diptera) 

 RODA, A. - Inst. F. Oloriz, Fac. of Med., Univ. of Granada, GRANADA, Spain 

 a Electron microscopy of developing nervous system. Gallus gaUus (Aves) 

 R0D£, B.; Ph.D., Prof. - Dept. of Zool., Univ. of Zagreb, Rooseveltov trg 6, 41000 ZAGREB, and 



Dept. of Pathol., Fac. of Dent., Univ. of Zagreb, "Dr. M. Stojanovic", 41000 ZAGREB, 



Yugoslavia ■ , . ^, 



ROEST (WAGENAAR), Ms. J. A. - Anat.-Embryol. Inst., Univ. of Amsterdam, Mauntskade 61, 



AMSTERDAM-0., 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. LOS) 

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

 ROGUEDA (VIGNAU), Ms. J.; Dr.Biol.anim. - Lab. de ZooL Exp., Univ. de Bordeaux I, Av. des 



Facultes, 33405 TALENCE, France 

 a Embryonic morphogenesis of the head. Carausius spec. (Phasmida) 

 b CephaHc endocrine glands and embryonic regeneration. Same species as a (with B. FOURNIER) 



87 



