ment. Acomys cahirinus dimidiatus, Mesocricetus auratus (Rodentia), Homo sapiens (Primates) 

 WARTIOVAARA, J. J.; M.D. -^ Lab. of Exp. Embryol., III. Dept. of Pathol., Univ. of Helsinki, 



Haartmaninkatu 3, 00290 HELSINKI 29, Finland 

 a Mechanism of kidney tubulogenesis. Mus musculus (Rodentia) (with L. O. SAXEN, 



E. LEHTONEN, S. NORDLING, P. EKBLOM and J. SALONEN) 

 b Freeze-etching electron microscopy of ribosome-membrane association in liver cells. Rattus 



spec. (Rodentia) (with 1. VIRTANEN) 

 c Cell surface antigen localization in differentiation and malignancy of embryonic fibroblasts. 



Gallus domesticus (Aves) (with A. VAHERI and S. STENMAN) 

 WATSON, A.; B.Sc. - Dept. of Genet., Univ. of Birmingham, Edgbaston, P.O.Box 363, BIRMING- 

 HAM B 15 2TT, England 

 a Developmental genetics of a mutant affecting limb growth and morphogenesis. Ambystoma 



mexicanum (Urodela) 

 b Limb regeneration. Same species as a 

 WATTS, G. T.; Ch.M. - Dept. of Surg., Queen Elizabeth Hosp., Edgbaston, BIRMINGHAM 15, 



England 

 WEAKLEY (SHAW), Ms. B.; Ph.D. - Dept. of Anat., Med. Sci. Inst., Univ. of Dundee, HawkhUl, 



DUNDEE DDl 4HN, Scotland, U.K. 

 a Cytochemistry and ultrastructure of developing germ cells. Mesocricetus auratus (Rodentia) 

 b Effects of different preparative procedures on ultrastructure of differentiating ovarian tissue. 



Same species as a 

 WEBB, F. T. G.; D.Phil. - Marshall Lab., Dept. of Physiol., Univ. of Cambridge, Downing St., 



CAMBRIDGE CB2 3EG, England 

 a Control of growth and differentiation of the early embryo in vitro and in vivo. Mus musculus, 



Rattus spec. (Rodentia) 

 b Control of egg implantation. Same species as a 

 c Control of formation, growth and differentiation of follicles in the ovary. Same species as a, and 



Homo sapiens (Primates) 

 WEBER, R.; Ph.D., Prof. - Div. of CeU and Devi. Biol., Zool. Inst., Univ. of Bern, Sahlistr. 8, 3012 



BERN, Switzerland 

 a Albumen synthesis during metamorphosis. Xenopus laevis (Anura) (with I. ABRAHAM) 

 b Hemoglobin transition in relation to metamorphosis. Same species as a 

 c Regulatory mechanism of estrogen-dependent synthesis of vitellogenin. Same species as a (with 



G. U. RYFFEL) 

 WEGENER, G.; Dr.rer.nat. - Inst, fur Zool., Univ., Saarstr. 21, oiOO MAlNZ, B.R.D. (Germany) 

 WEGMANN, R.; Dr.Med., D.Sc, Prof. - Inst. d'Histochim. Med., Univ. Paris V (Rene Descartes), 45 



rue des Sts.Peres, 75270 PARIS Cedex 06, France 



also: Dept. d'Histoenzymol., Fac. Fran9aise de Med. et Pharm., B.P.5076, BEIRUT, Lebanon 

 a Enzymology and metabohc pathways of morphogenesis. (Mammalia) 

 b Development of the ovary. (Mammalia) 



WEGNEZ, M.; D.Sc. - Centre de Genet. Molec. du CNRS, 91 190 GIF-sur-YVETTE, France 

 a Mecanismes biochimiques de I'oogenese. Xenopus laevis (Anura) 

 WEIDELI, H. J.; Dipl.Phil.II - Abt. Zellbiol., Biozentrum der Univ., Klingelbergstr. 70, 4056 BASEL, 



Switzerland 

 a Differentiation and determination; factors involved in embryonic development; mRNA synthesis 



in early stages. Drosophila melanogaster (Diptera) 

 WEISS, R. A.; B.Sc. - Imp. Cane. Res. Fund Labs., Lincoln's Inn Fields, LONDON WC2A 3PX, 



England 

 WELLENSIEK, S. J.; Dr., Ir., Prof. - Dept. of Horticult., Agric. Univ., Haagsteeg 3, P.O.Box 30, 



WAGENINGEN, Netherlands 

 a Effects of flower inducing factors (long day, vernalization, very high temperature, gibberellic 



acid) on the blocking in vegetative plants of different genotypes. Silene armeria (Caryophyl- 



laceae) 

 WELLMANN, E.; Dr.rer.nat. - BioL Inst. II der Univ., Lehrst. fur Bot., Schanzlestr. 1, 78 



FREIBURG/Br., B.R.D. (Germany) 

 a Light mediated differentiation in tissue cultures. (Umbelliferae) 

 WELSUM, R. A. van; M.D. - Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61, AMSTER- 



DAM-O., Netherlands 

 a Cytochemistry of developing neurons. Gallus domesticus (Aves) 

 WENDER, M. B.; M.D., Prof. - Inst, of Neurol, and Sensory Organs, Med. Acad., 49 Przybyszewskie- 



go St., 60-335 POZNAIVJ, Poland 

 a The chemical composition and enzyme activity of developing nervous tissue with special 



reference to the period of myehnation. Laboratory animals. Homo sapiens (Mammalia) 

 b The influence of ionizing radiation on the developing nervous system. Oryctolagus cuniculus 



(Lagomorpha) 

 c Histoenzymatic architectonics of the developing nervous system. Rattus norvegicus (Rodentia) 

 WENIGER, J.-P.; Dr. - Lab. de Zool. et d'Embryol. Exp., Univ. Louis Pasteur, 12 rue de I'Universite, 



67000 STRASBOURG, France 

 a Chemical nature of the testicular hormone of the embryo: probably a protein. Gallus domesticus 



(Aves) 

 b The role of the hypophysis in hormonal activity of embryonic gonads. Gallus domesticus. Anas 



platyrhynchos (Aves), Mus musculus, Rattus spec. (Rodentia), Oryctolagus cuniculus (Lagomorpha) 

 WENSING, C. J. G.; D.V.M., Ph.D. - Vet.Anat.and Embryol. Inst., State Univ. of Utrecht, Bekker- 



str. 141, UTRECHT, Netherlands 



108 



