b Histochemical studies on developing photoreceptors. Lymnaea spec, Euhadra spec, Limax 

 spec. (Pulmonata) . Monodonta spec, Conomurex spec, Littorina spec (Prosobranchia, 

 Gastropoda), Pecfen spec, Chlamys spec. (Lamellibranchia) , Octopus spec. (Octopoda), 

 Sepia spec. (Decapoda, Cephalopoda) 



KOSIN. I. L. Ph.D., Prof. — Lab. of Developm. Biol, Dept. of Anim. Sci., Washington 

 State Univ., PULLMAN, Wash. 99163, U.S.A. 



KOSKIMIES, O. J. M.D. — Lab. of Exper. Embryol., Dept. of Zool., Univ. of Helsinki, 

 Arkadiankatu 7, HELSINKI 10, Finland 



a Virus-induced abnormalities in embryonic development. Homo sapiens (Primates) (in col- 

 laboration with L. O. SAXfiN, Dept. of Pathol.) 



KOSTELLOW, Miss A. B. Ph.D. — Dept. of Physiol., Albert Einstein Coll. of Med., 

 Yeshiva Univ., 1300 Morris Park Ave., NEW YORK, Bronx, N.Y. 10461, U.S.A. 



a Enzyme induction in the embryo; the conditions controlling the synthesis of tissue specific 

 enzymes from competive pathways of tryptophan metabolism leading to the production 

 of kynurenine or serotonin are being studied in dissociated late blastula and early gastrula 

 cells. Rana pipiens (Anuca) 



h The ionic events that occur during blastula formation which are associated with morpho- 

 genesis and cell differentiation: the transport of cytoplasmic Na+ into the blastocoel. 1. 

 Mapping the changing electric fields at the surface of the developing embryo and cor- 

 relating these fields with known patterns of cell migrations. 2. Monitoring the rate of Na+ 

 release in each of the germ layers. 3. Assaying for vasopressin-like hormone activity in 

 blastula extracts. Rana pipiens (Anura) 



KOSTOMAROVA, Mrs. A. A. Cand.biol.sci. — Lab. of Biochem. Embryol., Inst, of 

 Developm. Biol., Acad, of Sci. of the U.S.S.R., 26 Vavilov St., MOSCOW V-133, 

 U.S.S.R. 



KOTANI, M. M.Sc — Lab. of Embryol., Fac of Sci., Osaka City Univ., Sugimoto-cho, 

 Sumiyoshi-ku, OSAKA, Japan 



a Nature of germinal cytoplasm. Xenopus laevis (Anura) 



KOZIK, M. M.D. — Dept. of Neurol., Med. Acad., Przybyszewskiego St. 49, POZNAl^l, 

 Poland 



a Histochemistry of glia cells in the developing nervous system. 



b Histochemical mapping of the developing brain. 



KRAICER, P. F. Ph.D., Prof. — Dept. of Zool., Tel-Aviv Univ., 155 Herzl St., TEL- AVIV, 

 Israel 



a Changes in the follicular oocyte preceding ovulation. Rattus norvegicus (Rodentia) 



b Composition of follicular fluid. Homo sapiens (Primates) 



KRAL, B. RNDr. — Dept. of Morphol., Inst, of Vertebr. Zool., Czechoslov. Acad, of Sci., 

 Kvetna, 8, BRNO, Czechoslovakia 



a Comparative studies of chromosomes. (Lacectilia; Rodentia; Insectivora: Chiroptera) 



KRAMER, J. P. Ph.D., Prof. — Dept. of Entomol. and Limnol., Cornell Univ., 10 Comstock 

 Hall, ITHACA, N.Y. 14850, U.S.A. 



a Morphological development of entomophilic forms. Octosporea muscaedomesticae (Micro- 

 sporidia, Sporozoa) 



b Pathogenesis of octosporeosis. Phormia regina. Musca domestica (Diptera) 



KRANTZ, Mrs. H. Dr.med. — Anat. Inst, der Univ. Rostock, Gertrudenstr. 9, 25 ROSTOCK 



1. East Germany 



a Einfluss des Alters einer Kultur auf die Zellkerngrosse 



b Der Zellkern im Organismus und im Explantat. 



c Development of the Hortega-cells 



KRATOCHWIL, K. Dr.phil. — Inst, fiir Krebsforsch., Univ. Wien, Borschkegasse 8a, Post- 



fach 72, A-1090 WIEN, Austria 

 a Organ-specificity in mesenchymal induction. Mus musculus (Rodentia) 

 b Endocrine control of development. Mus musculus (Rodentia) 

 c Mammary gland development. Mus musculus (Rodentia) 

 KRAUS, Miss C. Dr.phil. — Hirnanat. Inst, der Psychiatr. Univ. Klinik Bern, 3072 OSTER- 



MUNDIGEN-BE, Switzerland 

 a Ontogenesis of the brain. (Cetacea) 

 KRAUS, R. M.D. — Inst, of Embryol., Fac. of Med., Charles Univ., Albertov 4, PRAGUE 



2, Czechoslovakia 



a Differentiation and role of prechordal plate in early development of cephalic region (sub- 

 microscopic and cytochemical studies in normal and experimental conditions). Gallus 

 domesticus (Aves), Mus rattus (Rodentia), Homo sapiens (Primates) 



h Differentiation of the chemoreceptor cell (comparative studies on the submicroscopic 

 structure, enzyme histochemistry). (Rodentia; Carnivora), Homo sapiens (Primates) 



KRAUSE, G. Dr.phil., Prof. — Zool. Inst, der Univ., Rontgenring 10, 87 WORZBURG, 

 W.Germany 

 — Heiligenberg Inst., 7799 HEILIGENBERG, Baden, W.Germany • 



a Experimentell erzeugte duplicitas cruciata. Tachycines asynamorus (Octhoptera) 



b Analyse der Keimanlagenbildung. Bombyx mod (Lepidoptera) 



97 



