enzymes from competitive pathways of tryptophan metabolism leading to the production of 



kynurenine or serotonin, studied in dissociated late blastula and early gastrula cells. Rana 



pipiens (Anura) 

 b The ionic events that occur during blastula formation which are associated with 



morphogenesis and cell differentiation; the transport of cytoplasmic Na+ into the blasto- 



coel: 1. mapping the changing electric fields at the surface of the developing embryo and 



correlating 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) 

 KOSTOVIC (KNE2EVIC), Mrs. Lj. M.D. — Inst, of Histol. and Embryol., Univ. of Zagreb, 



Salata 3, P.O.Box 166, 41001 ZAGREB, Yugoslavia 

 a Temporal sequence of appearance of collagen and elastin fibrils and basement membranes, 



their pattern organization and relation to morphogenetic events during ontogenesis. Rattus 



norvegicus (Rodentia) (with A. 3VAJGER) 

 KOTANI, M. M.Sc. — Lab. of Embryol., Fac. of Sci., Osaka City Univ., 459 Sugimoto-cho, 



Sumiyoshi-ku, OSAKA, Japan 

 a Nature of germinal cytoplasm. Xenopus laevis (Anura) 

 KOYAMA, T. M.D.,Ph.D. — , Dept. of Anat., Tokyo Med. and Dent. Univ., 1-5-45, Yushima, 



Bunkyo-ku, TOKYO, 113 Japan 

 a Tissue transplantation. Rana japonica, Rhacophorus schlegelii, Xenopus laevis (Anura) 

 KOZIK, M. M.D. — Inst, of Neurol, and Sensory Organs, Med. Acad., Przybyszewskiego 



St. 49, POZNAfi, Poland 

 a Histochemistry of glia cells in the developing nervous system. (Mammalia) 

 b Histochemical mapping of the developing brain. (Mammalia) 

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



Israel 

 a The metabolism of spermatozoa. Homo sapiens (Primates) 

 b Composition of follicular fluid. Homo sapiens (Primates) 

 c Behavior of cumulus granulosa cells in vitro, and their function in fertilization. 



Rattus spec. (Rodentia) , Homo sapiens (Primates) 

 d Reproductive biology. Psammomys obesus (Rodentia) 

 e Microcinematography of fertilization. Rattus norvegicus (Rodentia) 

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



Kvetna 8, BRNO, Czechoslovakia 

 a Comparative studies of chromosomes. (Lacertilia; Rodentia; Insectivora) 

 KRAMER, Miss B. B.Sc.(Hons.) — Dept. of Anat., Med. School, Univ. of the Witwaters- 



rand, Hospital St., Hillbrow, JOHANNESBURG, S.Africa 

 a Effects of actinomycin D on developing pigment cells. Xenopus laevis (Anura), Gallus 



domesticus (Aves) 

 KRAMER, J. P. Ph.D., Prof. — Dept. of Entomol., Cornell Univ., 10 Comstock Hall, ITHA- 

 CA, N.Y. 14850, U.S.A. 

 a Morphological development. Octosporea muscaedomesticae (Microsporidia, Sporozoa) 

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

 c Abnormal development in unnatural hosts. Octosporea muscaedomesticae (Microsporidia, 



Sporozoa), Muscoidea (Diptera) 

 KRANTZ, Mrs. H. Dr.med. — Anat. Inst., Med. Bereich, Univ. Rostock, Gertrudenstrasse 



9, 25 ROSTOCK 1, East. Germany 

 a Einfluss des Alters einer Kultur auf die Zellkerngrosse. Gallus domesticus (Aves), Mus 



musculus (Rodentia) 

 b Der Zellkern im Organismus und im Explantat. Gallus domesticus (Aves), Mus musculus 



(Rodentia) 

 c Development of the Hortega-cells. Gallus domesticus (Aves), Mus musculus (Rodentia) 

 KRATOCHWIL, K. Dr.phil. — Inst, fur 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. — Brain Anat. Inst., Untere Zollgasse 71, (Waldau), 3072 



OSTERMUNDIGEN-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 



(submicroscopic and cytochemical studies in normal and experimental conditions). Gallus 



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

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



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

 c Differentiation of paraganglionic tissue. Homo sapiens (Primates) 

 d Comparative studies of prenatal development of Leydig interstitial cells. (Primates; 



Rodentia) 



100 



