Kno-Kuh 



KNOUFF, R. A. Ph.D., Prof. — Dept of Anat, Ohio State Univ. CO- 

 LUMBUS 10, Ohio, U.S.A. 



KOCK, J. M. de — Zool. Inst, Fac. of Sci., Univ. of Stellenbosch, STELLEN- 

 BOSCH, South Africa 

 a. Ontogenesis of the chondrocranium. Melopsittacus undulatus (Psittaci, 

 Aves) 



KOECKE, H.-U. Dr. Phil. — Zool. Inst, der Univ. Koln, Kerpenerstr. 13, 1 

 KoLN-LINDENTHAL, Deutschland 



a. Krebsproblem als entwicklungsphysiologisches Problem. Mus spec. (Ro~ 

 dentia) , Columba spec. (Aves) 



b. Probleme der Entwicklungsphysiologie. Columba spec. (Aves) 



c. Neuralleistenentwicklung und Pigmentierung. Anas spec. (Aves) 



d. Identifizierung von Melanoblasten und Melaningenese. Anas domestica 

 (Aves) 



e. Determination von Neuralleistenzellen und Derivaten. Anas domestica 

 (Aves) 



KOJIMA-KUNO, M. M.A. — Marine Biol. Station, Nagoya Univ., Su- 



gashima-cho, TOBA, Mie-ken, Japan 

 a. Physiological studies on the cleavage of eggs. Hemicentvotus pulcherri- 



mus, Pseudocentvotus depressus (Echinoidea) 

 KOLLROS, J. J. Ph.D., M.I.I.E., Prof. — Dept. of Zool., State Univ. of 



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



a. Influence of peripheral and intracentral factors upon the growth of the 

 central nervous system. Rana spec, Bufo spec, Pseudacris spec. (Anuva) 



b. Metamorphic effects of thyroxine in very low concentrations, and in 

 higher concentrations applied locally. Rana spec, Bufo spec, Pseudacris 

 spec, Ambystoma spec. (Amphibia) 



c Development of grafts of isolated segments of the central nervous system. 

 (Anura) 



d. Studies of mitosis in the developing central nervous system. (Amphibia) 



e. Influence of thyroxine analogues upon metamorphosis. J^ana pipiens 

 (Anura) 



f. Influence of the eyeball upon the development of the lids, cornea, nicti- 

 tating membrane, palpebral fissure and tear glands. Rana pipiens, Pseu- 

 dacris nigrita (Anura) 



KONIGSBERG, I. R. A.B., Ph.D. — Gerontology Section, Baltimore City 



Hospitals, BALTIMORE 24, Md., U.S.A. 

 KONIGSBERG, Mrs. U. ROTHFELS Ph.D. — Dept. of Zool., Univ. of 



Connecticut, STORRS, Conn., U.S.A. 



(no embryological work in progress) 

 KONOK, I. Prof. — The Biol. Research Inst, of the Hungarian Acad, of 



Sci., TIHANY, Lake Balaton, Hungary 



a. Comparative physiological and histological studies on the neuro-endocrine 

 activity of the nervous system. The effect of UV-irradiation. (Insecta; 

 Decapoda) 



b. Studies on the chemical nature and the effect-mechanism of neuro- 

 secretion. (Lepidoptera; Orthoptera; Decapoda) 



KONOPACKA, Mrs. B. Dr., M.V.S.S., Prof. — Inst, of Histol. and 

 Embryol., Veter. Fac, ul. Grochowska 272. WARSZAWA, Poland 

 a. Histochemical studies on the differentiation of epithelial cells in the 

 intestine. Sus domestica (Artiodactyla) 



70 



