Ros'Run 



ROSTAND. J. M.I.I.E. — 29 Rue Pradier. VILLE D'AVRAY (S. 6 O.), 

 France 



a. Parthenogenese et gynogenese; regulation chromosomique par le froid. 

 (Amphibia) 



b. Mutations (polydactylie, ectrodactylie, etc.) et anomalies provoquees 

 par le milieu exterieur (principalement "Anomalie P"). (Amphibia) 



c. Action protectrice de la glycerine a I'egard de la congelation des cellules 

 spermatiques. (Amphibia) 



ROTl', Mrs. N.N. Cand.biol.sci. — Inst, of Animal Morphol., Acad, of Sci. 

 of the U.S.S.R., Vavilov St. 12, MOSCOW V-133, U.S.S.R. 



a. Induction of diploid androgenesis by heat treatment. Ambystoma mexi- 

 canum (Urodela) 



b. Cytological changes in eggs under the effect of high temperature. Am- 

 bystoma mexicanum (Urodela) 



c. Changes in thermal sensitivity during embryonic development. Amby- 

 stoma mexicanum (Urodela) 



ROULSTON, W.J. M.Sc. — Div. of Entomol., Veter. Parasitol. Lab.. 

 C.S.I.R.O., 677 Fairfield Rd., YEERONGPILLY, Queensland, Austra- 

 lia 

 a. Esterases in eggs and larvae of strains differing in organophosphorus 

 resistance. Boophilus microplus (Ixodidae, Acarina) 



kOUX, Ch. Dr.en Med., Prof.Agr. — Lab. d'EmbryoI., Fac. de Med., 45 

 Rue des Sts. Peres, PARIS Vie, France 



a. Influence teratogene des intoxications. Mus rattus (Rodentia) 



b. Anomalies de I'appareil urogenital. Mus rattus (Rodentia) 

 ROWINSKI, P. Prof. — 1st. di Fisiol. gener. e spec, degli Animali domesti- 



ci e Chim. biol., Univ. di Torino, TORINO, Italia 



a. Histochemical and chemical determination of acetylcholinesterase and 

 cholinesterase in muscular tissue (skeletal muscle, heart, gizzard) and 

 its significance in relation to the changing parameters of excitability 

 during differentiation. Gallus domesticus (Aves) 

 ROWSON, L.E.A. M.R.C.V.S. — Animal Research Station, A.R.C. Unit. 

 of Reproductive Physiol, and Biochem., Univ. of Cambridge, 307 Hun- 

 tingdon Rd., CAMBRIDGE, England 



a. Ovum transplantation and artificial insemination. (Mammalia) 

 RUBEN. L.N. A.B., M.S., Ph.D., Prof. — Biol. Dept., The Reed Inst., 

 PORTLAND, Ore. 97202. U.S.A. 



a. The developmental capacity of differentiated cells. Rana pipiens, Xeno- 

 pus laevis, Triturus viridescens (Amphibia) 



1 . The interrelationships of cancer and regenerating systems. 



2. The induction of supernumerary limbs. 



RUBEN, R.J.. M.D. — Sect, on Exper. Embryol.. Lab. of Neuroanat.Sci., 

 N.I.N.D.B., Natl.Insts. of Health, BETHESDA, Md.200H, U.S.A. 



a. Histogenesis of the vertebrate inner ear as revealed with tritiated thy- 

 midine. Mus musculus (Rodentia) (in collaboration with A.J.COU- 

 LOMBRE) 



b. Experimental embryology of inner ear. Gallus domesticus (Aves) 

 RUCH. J.V. Dr.en Med. — Inst. d'EmbryoI., Fac. de Med.. 1 Place de 



I'Hopital, STRASBOURG, France 

 a. Chimioteratogenese (venins). (Aves) 



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