mutants. Same species as a, and Mus musculus (Rodentia) (with J. C. CAMPBELL (Edinburgh) 

 and D. S. McDEVITT (PhUadelphia)) 



c Ultrastructure, immunology, and cell properties of lenses with normal and genetically modified 

 cell membranes. Same species as b (with D. I. DE POMERAI (Nottingham)) 



d Standardisation of lens antibodies. Many species (with all lens immunochemists willing to colla- 

 borate) . , ,- f, 



e Differentiation and cell interactions in vitro of normal and abnormal ocular epithelium. Same 

 species as b (with D. I. DE POMERAI) 



f In vitro analysis of transdifferentiation of neural and pigmented retina. Same species as a (with 

 D. I. DE POMERAI and J. BRODIE) 



g In vitro analysis of teratogens (with D. I. DE POMERAI and C. PATEK) 



CLEGG, E. J.; M.D., Ph.D., Prof. - Dept. of Anat., Marischal Coll., Univ. of Aberdeen, ABERDEEN 

 AB9 IAS, Scotland, UK 



a Effect of hypoxia on preimpiantation stages. Mus musculus (Rodentia) 



CLEMEN, G.; Dr. - Lehrstuhl fur spez. Zool., Zool. Inst, der Univ., Hufferstr. 1, 4400 MUNSTER, 

 BRD (Germany) r. . 



a Light and scanning electron microscopy of the teeth in the upper jaw and the palate ot larval, 

 neotene, and metamorphosed animals. Necturus maculosus, Triturus vulgaris, Hynobius keyser- 

 Ungii, h' nebulosus, Batrachuperus mustersi, Andrias japonicus, A. davidianus (Urodela) 



b Development of the vomerine bai and significance of the ramus palatinus to its development 

 during metamorphosis. Salamandra salamandra (Urodela) 



CLOTHIER, R. H.; Ph.D. - Dept. of Hum. Morphol., Med. School, Univ. of Nottingham, Clifton 

 Blvd., NOTTINGHAM NG7 2UH, England 



a Neoplasms. Xenopus laevis (Anura), Triturus cristatus (Urodela) 



b Development of the immune response and role of thymus. Xenopus laevis (Anura) 



c Control of differentiation in organ cultures. Same species as b, and Amphiuma means (Urodela) 



CLOWES, F. A. L.; D.Phil., D.Sc. - Botany School, Oxford Univ., South Parks Rd., OXFORD 0X1 

 3RA, England 



a Organisation of meristems, especially origin of diversity in mitotic cycles. Zea mays (Grammeae) 



COBOS CARBO, P. - Dept. of Anat., Univ. of Barcelona, C/ .Casanova 143, BARCELONA 36, Spain 



a Embryology of caecum and vermiform appendix (organ culture). Rattus spec. (Rodentia), Oryc- 

 tolagus cuniculus (Lagomorpha) 



COCHARD, P.; Dr.spec. - Inst. d'Embryol. du C.N.R.S. et du Coll. de France, 49bis av. de la Belle 

 GabrieUe, 94 1 30 NOGENT-sur-M ARNE, France 



a Determination of neurotransmitter metabolism in autonomic neurons; noradrenergic and cholin- 

 ergic phenotypic expression in neural crest derivatives. Gallus gallus, Coturnix c. japonica (Aves), 

 Mus musculus (Rodentia) 



COCK, A. G.; Ph.D. - Dept. of Biol., Univ., Med. and Biol. Sci. Bldg., SOUTHAMPTON S09 3TU, 

 England 



a Developmental genetics of body proportions (no current experimental work) 



COCK, A. W. A. M. de; Drs. - Sect. Molec. Developm. Biol., Dept. of Bot., Cathol. Univ., Toernooiveld, 

 NIJMEGEN, Netherlands 



a Sexual reproduction. Zostera marina, Z. noltii (Najadaceae) 



COCKROFT, D. L.; Ph.D. - Marshall Lab., Dept. of Physiol., Univ. of Cambridge, Downing St., 

 CAMBRIDGE CB2 3EG, England 



a Teratogenic effects of elevated levels of glucose on head fold embryos in culture, and the mecha- 

 nisms by which these effects are produced. Rattus spec. (Rodentia) 



b Effectsof steroid hormones on embryos in culture. Same species as a 



c Nutrient requirements of embryos undergoing organogenesis. Same species as a 



COGNETTI, G.; Dott.Chim. - 1st. di Anat. Comp., Univ. di Palermo, Via Archirafi 20, 90123 

 PALERMO, Italy 



a Histones and other nuclear proteins in oocytes and during embryology. Paracentrotus lividus 

 (Echinoidea) 



b Chromatin structure in embryos. Same species as a 



COHEN, Jack; Ph.D. - Dept. of Zool. and Comp. Physiol., Univ. of Birmingham, P.O.Box 363, 

 BIRMINGHAM B15 2TT, England 



COHEN, J.; M.Sc. - Dept. of Endocrinol., Growth, and Reprod., Erasmus Univ., P.O.B. 1738, 3000 

 DR ROTTERDAM, Netherlands 



a In vitro interaction between hamster eggs and human spermatozoa, and its possible use as a fertil- 

 isation assay of human spermatozoa. Mesocricetus auratus (Rodentia), Homo sapiens (Primates) 



b Developmental differences between gynogenetic, parthenogenetic and in vitro fertilised eggs. Mus 

 musculus (Rodentia) 



COLARD, C. - Lab. de Zool. et Embryol., Univ. de Besan^on, place Marechal Leclerc, 25030 

 BESANCON Cedex, France 



a Organogenese de la glande mammaire (culture in vitro). Mus musculus (Rodentia), Oryctolagus 

 cuniculus (Lagomorpha) (avec L. GOMOT et A. F. LUCARZ-BlETRY) 



COLENBRANDER, B.; D.V.M. - Vet. Anat. and Embryol. Inst., State Univ., Bekkerstraat 141, 

 3572 SG UTRECHT, Netherlands 



a Endocrinology of sexual differentiation. Sus scrofa domesticus (Artiodactyla) 



b Development of accessory sex glands in freemartins and normal animals. Same species as a 

 COLLENOT, A.; Dr.Vet., Dr. Sci., Prof. - Lab. d'Embryol. Exp., Centre de Rech. du C.N.R.S., 67 rue 



Maurice Gunsbourg, 94200 IVRY sur SEINE, France 

 a Analyse experimentale des mecanismes de la differenciation sexuelle des gonades. (Amphibia) 

 b L'expression des genes lethaux: ulcere et lethal mitotique. Pleurodeles waltl (Urodela) 



27 



