a Developmental physiology of neural crest cells in relation to early pigment synthesis and 



transfer of melanin into feather cells. Anas domestica (Aves) 

 b Development of feather germ induction and its morphological basis. Anas domestica, 



Gallus gallus (Aves) 

 c Developmental physiology of parathyroid gland primordium. Salamandra spec. (Urodela) 

 d Reaction of regenerating epidermal and mesodermal tissues in feather germs and hair 



follicles under influence of cancerogenous compounds. Mus musculus (Rodentia), Columba 



livia (Aves) 

 KOEHLER, L. D. Ph.D., Prof. — Dept. of Biol., Central Michigan Univ., Mt. PLEASANT, 



Mich. 48858, U.S.A. • 



a Comparative study of ultrastructure of sperm and spermiogenesis. (Decapoda, Crustacea) 

 b Ultrastructural aspects of spermatogenesis. Esox vermiculatus (Teleostei) 

 KOHL. D. M. Ph.D. — Dept. of Biol. Sci., Univ. of California, SANTA BARBARA, Calif. 



93106, U.S.A. 

 a Control of RNA synthesis in embryos; characterization of RNA's synthesized at different 



stages by DNA-RNA hybridization. Rana pipiens (Anuca) 

 b Effect of folic acid on RNA synthesis in the kidneys. Mus musculus (Rodentia) 

 KOHLER, H.-J. — I- Zool. Inst., Friedrich-Alexander Univ., Universitatsstr. 19, 852 ER- 



LANGEN, W.Germany 

 a Embryology. Cyclops spec. (Copepoda, Crustacea) 

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



Arkadiankatu 7, HELSINKI 10, Finland 

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



-ken, 517 Japan 

 a Physiology of egg cleavage. Hemicentrotus pulcherrimus, Pseudocentrotus depressus 



(Echinoidea) 

 KOLLAR, E. J. Ph.D. — Dept. of Oral Biol., Sch. of Dent., Univ. of Connecticut, 



FARMINGTON, Conn., 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) 

 b Suppression and stimulation of neural crest and integumental differentiation by beta-2- 



thienylalanine. Same species as a 

 c Development of Meckel's cartilage. (Mammalia) 

 d Long-term culture of dental papillae cells. (Mammalia) 

 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 nigvita, Rana pipiens (Anuva) 

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



Pseudacris nigrita, Ambystoma jellersonianum (Amphibia) 

 c Development of spinal and cerebral centers. Rana pipiens, R. catesbeiana, Pseudacris 



nigrita, Bufo americanus (Anura) 

 d Delineation of skin territories of different developmental capacities, especially as in- 

 dicated by gland development. Rana pipiens and other spp. (Anura) 

 KONDO, K. M.Sc. — Dept. of Biophys. and Biochem., Univ. of Tokyo, 7-3-1 Hongo, 



Bunkyo-ku, TOKYO, 113 Japan 

 a Reaggregation of dissociated embryonic cells, especially the search for cell-reaggregating 



substances as known in Porifera. (Echinoidea) 

 b Adhesiveness of cells: 1. mechanism of adhesion; 2. changes in adhesiveness accompanying 



development and their significance. (Echinoidea) 

 KONDO, Miss N. M.Sc. — Dept. of Biol., Coll. of Gen. Educ, Osaka Univ., Toyonaka, 



OSAKA, 560 Japan 

 a Induction and development of apogamous structures in gametophytes. Equisetum arvense 



(Equisetinae) 

 KONIGSBERG, I. R. Ph.D., Prof. — Dept. of Biol., Univ. of Virginia, Gilmer Hall, 



CHARLOTTESVILLE, Va. 22903, U.S.A. • 



KONIJN, Th. M. Ph.D. — Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 1, Universi- 



teitscentrum "De Uithof", UTRECHT, Netherlands 

 a Chemotaxis, cell aggregation and differentiation. (Acrasiales) 

 b Adenosine-3\5'-monophosphate and other cyclic nucleotides during morphogenesis in lower 



and higher organisms 

 c Electrophysiology of development. (Acrasiales) (with S. W. de LAAT) 

 KONISHI, T. D.Sc. — Lab. of Developm. Biol., Dept. of Anim. Sci., Coll. of Agricult, 



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

 a Effect of increased CO2 level during preincubation storage on embryogenesis. Gallus 



domesticus (Aves) 

 KONYUKHOV, B. V Dr.biol.sci., Prof. — Phenogenet. Lab., Inst, of Gen. Genet., Acad, of 



Sci. of the U.S.S.R., 7(1) Profsojuznaya St., MOSCOW B-133, U.S.S.R. 



98 



