b Comparison of egg and haemolymph proteins. (Irisecta) 



KOCHAR, N. K. M.Sc. — Dept. of Anat., Univ. of Liverpool. LIVERPOOL 3, England 



a The effect of X-irradiation on spermatogenesis. (Mammalia) 



KOCHAV, Sh. M.Sc. — Dept. of Zool., Hebrew Univ. of Jerusalem, JERUSALEM, Israel 



a The differentiation potencies of the blastoderm prior to laying. Gallus domesticus (Aves) 



KOCHER-BECKER, Mrs. U. Dr.rer.nat. — Heiligenberg Inst., 7799 HEILIGENBERG, 



Baden, W.Germany • 



a Determination of undetermined ectoderm in solutions of inducing substances. Triturus 



alpestris (Urodela) 

 b Effects and mechanisms of the mesodermal inducing factor. Triturus alpestris, Ambystoma 



mexicanum (Urodela) 

 KOCHER, W. Dr. phil. — Zool. Inst, der Univ. Wiirzburg, und Heiligenberg Inst., 7799 



HEILIGENBERG, Baden, W.Germany • 



a Patterns of effects of alkylating substances (especially of triethylenernelamine, TEM) and 



their treatment-phase specifity during early development and organogenesis. Gallus domes- 

 ticus (Aves) 

 b Pattern formation in selection-lines of the Polydactyly mutant. Mus musculus (Rodentia) 

 c Phenocopy of the gene effects of Polydactyly by means of TEM-treatment. Mus musculus 



(Rodentia) 

 d Interactions between the gene polydactyla and the teratogenic effects of TEM. Mus mus- 

 culus (Rodentia) 

 KOCHERT, G. Ph.D. — Dept. of Botany, Univ. of Georgia, ATHENS, Ga. 30601. U.S.A. 

 a Sexual induction. Volvox carted (Chlorophyceae) 

 b RNA metabolism in development. Volvox carted (Chlorophyceae) 

 KOCHHAR, D. M. Ph.D. — Depts. of Anat. and Oral Biol., Coll. of Med. and Dent., Univ. 



of Iowa, IOWA CITY, Iowa 52240, U.S.A. 

 a Teratogenic response of embryos to some specific amino acid analogues in vivo, and 



in whole embryo cultures. Mus musculus (Rodentia) 

 b Morphological and biochemical changes in limb buds of normal embryos and embryos in 



which phocomelia has been induced by experimental means. Mus musculus (Rodentia) 

 KOCHVA, E. Ph.D., Prof. — Dept. of Zool., Tel-Aviv Univ., 155 Herzl St., TEL- AVIV, 



Israel 

 a Development of glands; synthesis and transport of enzymes and other secretory products. 



(Ophidia, Reptilia) 

 KOCOVA (PECHACKOVA), Mrs. J. Dr.med. — Inst, of Histol. and Embryol., Fac. of 



Med., Charles Univ., Karlovarska 48, PLZE5J, Czechoslovakia 

 a The development of the venous system. ( Amniota) 

 KOECKE, H.-U. Ph.D., Prof. — Zool. Inst, der Univ., Ketzerbach 63, 355 MARBURG/ 



Lahn, W.Germany 

 a Determination von Neuralleistenzellen und Derivaten. Anas domestica (Aves) 

 h Entwicklungsphysiologie der Feder und embryonale Pterylose. Anas spec, Columba spec, 



Gallus domesticus (Aves) 

 c Neuralleistenentwicklung und Pigmentierung. Anas spec. (Aves) 

 d Identifizierung von Melanoblasten und Melaningenese. Anas domesticus (Aves) 

 e Anlage und Gefassversorgung der Epithelkorper (Parathyreoidea). Salamandra maculosa 



(Urodela) 

 KOHONEN, P. J. Ph.D. — Lab. of Exper. Embryol.. Dept. of Zool., Univ. of Helsinki, 



Arkadiankatu 7, HELSINKI 10, Finland 

 a Nucleic acid synthesis in induced ectoderm. Triturus spec. (Urodela) (in collaboration 



with S. I. TOIVONEN) 

 KOJIMA. M. K. D.Sc. — Marine Biol. Station, Nagoya Univ., Sugashima-cho, TOBA, 



Mie-ken, (517) Japan • 



a Physiological studies on the cleavage of eggs. Hemicentrotus pulcherrimus, Pseudocentrofus 



depressus (Echinoidea) 

 KOLLAR, E. J. Ph.D. — Dept. of Anat., Div. of Biol. Sci., Univ. of Chicago, 1025 E. 57th 



St., CHICAGO, 111. 60637, U.S.A. 

 a Differentiation of skin derivatives with special reference to teeth, vibrissae. and feathers; 



combinations of epithelial and mesodermal tissues are used to determine: the roles of these 



tissues, the inductive sequence, and the temporal and spatial stability and plasticity of the 



integument during early stages. Gallus domesticus (Aves), Mus musculus (Rodentia) 

 h Suppression and stimulation of neural crest and integumental differentiation by: Beta-2- 



thienylalanine, nerve growth factor, and anti-nerve growth factor. Gallus domesticus (Aves), 



Mus musculus (Rodentia) 

 KOLLROS. J. J. Ph.D., Prof. — Dept. of Zool.. Univ. of Iowa. IOWA CITY. Iowa 52240. 



U.S.A. 

 a Influence of thyroid hormones upon limb regeneration in tadpoles. Bufo americanus, Pseu- 



dacris nigrita, Rana pipiens (Anura) 

 h Tissue responses and control of sequence in metamorphosis. Rana pipiens, R. catesbeiana, 



Pseudacris nigrita, Ambystoma jeifersonianum (Amphibia) 



95 



