g. Heterosis and the development of irradiation congenital anomalies. 

 (Mammalia) 



h. Electroencephalographic analysis of brain following fetal irradiation. 

 (Mammalia) 

 RULON, G. O. Ph.D., Prof. — Dept. of Biol., Northwestern Univ., EVANS- 

 TON, 111., U.S.A. 



a. The control of growth and differentiation through the use of enzyme 

 inhibitors and activators. (Echinoidea) 



b. The control of head forms and reconstitutional processes with enzyme 

 inhibitors. (Planariidae, Turbellaria) 



c. The preservation of fertility of eggs with various chemical compounds. 

 ( Echinodermata) 



RUMPLER, Y. Dr.en Med. — Inst. d'Embryol., Fac. de Med., 1 Place de 

 l'Hopital, STRASBOURG, France 



a. Endocrinologie embryonnaire (facteurs agissant sur l'ossification). 

 (Aves; Mammalia) 



b. Chimioteratogenese (cortisone). (Aves; Mammalia) 



RUNNER, M. N. Ph.D., M.I.I.E. — Dept. of Biol., Univ. of Colorado, 

 BOULDER, Colo., U.S.A. 



a. Hormonal induction of ovulation, conception and pregnancy in prepuberal 

 animals. Mus musculus (Rodentia) 



b. Parental and dietary influences on skeletal morphogenesis. Mus musculus 

 (Rodentia) 



c. Carbohydrate metabolism in relation to chemically induced phenocopies 

 of the skeleton. Mus musculus (Rodentia) 



d. Hereditary susceptibility to congenital deformity. Mus musculus (Ro- 

 dentia) 



RUNNSTROM, }. A. M. Ph.D., M.D., F.I.I.E., Prof.(Emer.) — Wenner- 

 Gren's Inst, for exper. Biol., Norrtullsgatan 16, STOCKHOLM Va., 

 Sweden 



a. The activation impulse in fertilization and artificial parthenogenesis. 



(Echinoidea) 



b. Fine cell structure and cell division. (Echinoidea) 



c. The bilateral organization of the egg. (Echinoidea) 



d. The role of the animal-vegetal balance in development. The character 

 and mode of action of vegetal agents. (Echinoidea) 



RUSSELL (BRAUCH), Mrs. L. Ph.D. — Mammalian Genet, and Develop- 

 ment Sect., Biol. Div., Oak Ridge National Lab., P.O. Box Y, OAK 

 RIDGE, Tenn., U.S.A. 



RUSSO-CAIA, S. Prof.Inc. — 1st. di Zool. e Anat. Comp., Univ. di Came- 

 rino, CAMERINO, Italia 



a. Biochemistry of development. ( Aves; Mammalia) 



b. Biochemistry of metamorphosis. Musca domestica (Diptera) 



RUTH, R. F. Ph.D. — Dept. of Zool., Univ. of Alberta, EDMONTON, Al- 

 berta, Canada 



a. Immunogenetic analysis of graft rejection and graft-versus-host reactions 

 in the very young animal. Gallus gallus (Aves) 



b. Permanent impairment of the immune mechanisms by local irradiation of 

 the thymus and the bursa Fabricii of the very young animal. Gallus gallus 

 (Aves) 



139 



