b Biology of the trophoblast. Same species as a 



c Early embryonic development. Mus musculus (Rodentia) 



JENSEN, P. v.; M.Sc. - Inst, of Gen. Zool., Univ. of Copenhagen, 15 Universitetsparken, 2100 



COPENHAGEN 0, Denmark 

 a Ultrastructural changes in metamorphosing hearts. Calhphora erythrocephala (Diptera) 

 b DNA amount and DNA synthesis in the individual cells of the metamorphosing heart. Same 



species as a 

 c Peroxidase secreting epidermal cells in the pharate adult. Same species as a 

 JERKA-DZIADOSZ, Ms. M.; Dr.nat.sci. - Dept. of Cell Biol., M. Nencki Inst, of Exper. Biol., Polish 



Acad, of Sci., Pasteur St. 3, 02-093 WARSZAWA, Poland 

 a Surface organelle pattern regulation. Urostylidae (Ciliata) 

 b Genetically determined mirror-image inversion of the morphogenetic field. Tetrahymena thermo- 



^ j)hila (Ciliata) 

 JIRICKA, Z.; M.D., Ph.D. - Inst, of Pharmacol., Czech. Acad, of Sci., Albertov 4, 128 00 PRAHA 2, 



Czechoslovakia 

 a Normal and pathological histology and histochemistry of implantation and placentation. Homo 



sapiens (Primates; Rodentia) 

 b Influence of drugs and bacterial toxins on implantation and placentation. Same species as a 

 JIRSOVA, Ms. Z.; M.D. - Inst, of Embryol., Fac. of Med., Charles Univ., Albertov 4, 128 00 



PRAHA 2, Czechoslovakia 

 a Egg transplantation (electron microscopy and cytochemistry of egg transport and implantation in 



experimental conditions). Oryctolagus cuniculus (Lagomorpha) 

 b Electron microscopy and cytochemistry of tubal epithelium differentiation. (Rodentia; Carni- 



vora), Homo sapiens (Primates) 

 JOHANNISSON, R.; Dr. - Inst, fur Allgem. Biol., Univ. Dusseldorf, Universitiitsstr. 1, 4000 



DUSSELDORF, B.R.D. (Germany) 

 a Synthetic capacity and structure of oocytes and nurse cells; deposition of yolk protein in the 



oocyte. Daphnia magna (Cladocera, Crustacea) 

 b Gene physiology, Y chromosome. Drosophila spp. (Diptera) 



c Genetic regulation of differentiation; male germ line cells. Drosophila spp. (Diptera) 

 JOHN, H. A. - Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., EDINBURGH EH9 3JN, 



Scotland, U.K. 

 a Biosynthesis of contractile proteins during myogenesis in vivo and in vitro. Mus musculus, Rattus 



spec. (Rodentia), Homo sapiens (Primates) 

 JOHNEN, Ms. A. G.; Dr.phil., Prof. - Zool. Inst, der Univ., WeyertalI19, 5KOLN41, B.R.D. 



(Germany) 

 a Die Wirkungsspezifitat abnormer Induktoren in der Entwicklung. Triturus vulgaris, Ambystoma 



mexicanum (Urodela) 

 b Die Bedeutung des Zeitfaktors beim Induktionsvorgang. Dieselben Arten wie a 

 c Untersuchungen iiber die Kompetenzverhaltnisse beim Ektoderm. Ambystoma mexicanum, 



Triturus vulgaris, T. alpestris, T. helveticus (Urodela) 

 d Wechselwirkung zwischen Ektoderm und Mesoderm in Gastrula und Neurula. Dieselben Arten 



wie c 

 e Mass-effects in primary induction process. Same species as c 



JOHNSON, D. R.; Ph.D. - Dept. of Anat., School of Med., Univ. of Leeds, LEEDS LS2 9NL, England 

 a Electron microscopy of abnormal tissues, and neuroendocrinology of animals carrying mutant 



genes. Mus musculus (Rodentia) 

 b Biochemistry of achondroplastic mutants. Same species as a 

 c Mathematical analysis of growth process using multivariate analysis. Various spp. 

 JOHNSON, M. H.; Ph.D. - Dept. of Anat., Univ. of Cambridge, Downing St., CAMBRIDGE 



CB2 3DY, England 

 a Surface properties of gametes and early embryos (specific probes, e.g. lectins, antibodies, etc.). 



Mus musculus (Rodentia) 

 b Early development studied with sensitive micro-methods for determination of protein synthetic 



patterns in whole or microsurgically dissected normal and mutant embryos. Same species as a 

 c Developmental commitment and spatial relationship of cells in early embryos studied with 



, interspecific chimaeras and antigenic markers. Mus musculus, Rattus spec. (Rodentia) 

 JONCZY, J.; M.Sc. - Zool. Dept., Jagellonian Univ., ul. Krupnicza 50, KRAK6w 2, Poland 

 a Differentiation of primordial germ cells (quahtative and stereological analysis). Tetrodontophora 



bielanensis (Collembola) 

 JONES (HOLT), Ms. E. C; Ph.D. - Dept. of Anat., Med. School, Univ. of Birmmgham, Edgbaston, 



BIRMINGHAM B15 2TJ, England 

 a The effect of maternal age on morphology and development of fertilized eggs. Mus musculus 



(Rodentia) 

 JONES, G. E.; Ph.D. - Dept. of Biol., Queen Elisabeth Coll., Univ. of London, LONDON W8 7AH, 



England 

 a Control of cellular movement and adhesion in haemocytes. Patella vulgata (Gastropoda) 

 b Adhesive specificity between cells of developing neural retina. Gallus gallus (Aves) 

 JONES, K. W.; Ph.D. - Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., EDINBURGH 



EH9 3JN, Scotland, U.K. 

 a Location and function of reiterated DNA sequences in nuclei and chromosomes studied by in situ 



hybridization of complementary RNA. (Metazoa) 

 b Ultrastructure, biochemistry, and differentiation of myogenic cells, especially processes of 



transcription and translation 



53 



