a. Viruswirkung auf Embryonen unter Heranziehung der Explantations- 

 methode mit ganzen Organen. (Vertebrata) , Homo sapiens (Primates) 

 (in Zusammenarbeit mit G.ToNDURY) 



b. Biochemische Untersuchungen uber den Einfluss der Steroide auf die 

 Entwicklung. Triton alpestris (Urodela), Gallus domesticus (Aves), 

 Mus musculus ( Rodentia) 



RIECK, A.F. B.S.. M.S., Ph.D.. Prof. — Dept. of Physiol., Marquette 

 Univ., School of Med., 561 N. 15th Street, MILWAUKEE Wis. 

 53233, U.S.A. 



a. Photobiological studies on early cleavage. Echinarachnius parma 

 (Echinoidea) 



b. Cell renewal and differentiation in epidermis. Mus musculus (Rodentia) 



c. Inhibiting influences on forelimb regeneration. Triturus viridescens 

 (Urodela) 



RIEGERT. P. W. B.A., M.Sc. Ph.D. — Research station, Research 

 Branch, Canada Agricult., Univ. Sub Post Office. SASKATOON. 

 Sask.. Canada 

 a. Inheritance of diapause; duration, development and termination in 

 relation to temperature and light. Melanoplus bilitmatus, M. packardii, 

 M. dawsoni (Acrididae, Orthoptera) 

 h. Embryogenesis and growth. Melanoplus packardii, M. dawsoni (Acri- 

 didae, Orthoptera) 



RINALDI, Miss L. Dr.Biol. — 1st. di Zool. e Anat. comp., Univ. di Parma, 

 PARMA. Italia 

 a. Experimental morphology of bone induction and inhibitory action of 

 thalidomide, (in collaboration with B.SCHREIBER) 



RINALDINI, L. M. Ph.D., Prof. — Dept. of Microbiol., School of Med.. 

 New York Univ., NEW YORK. N.Y.. U.S.A. 



RISLEY. P.L. A.B.. M.S.. Ph.D.. Prof. — Dept. of Biol., Univ. of Ore- 

 gon. EUGENE. Ore.. U.S.A. 



a. Histophysiology of male reproductive organs. (Vertebrata) 



b. Cytodifferentiation and histogenesis of sex organs. (Vertebrata) 

 RIZZOLI. C. Dott.. Prof. — Inst, of Histol. and Gener. Embryol.. Univ. of 



Bologna, Via Belmeloro 8, BOLOGNA. Italia 

 a. Differentiation in vitro of explants of embryonic tissues. 

 ROBERTS (MONTGOMERY). Mrs. C. B.Sc. M.Sc. Ph.D. — Dept. of 

 Pharmacol.. School of Med.. Univ. of Southern California, LOS ANGE- 

 LES, Calif., U.S.A. 

 ROBERTS, L.W. B.A.. M.A.. Ph.D.. Prof. — Dept. of Biol. Sci., Univ. of 

 Idaho, MOSCOW, Idaho 83844. U.S.A. 

 a. Experimental induction of wound vessel member differentiation. Coleus 



blumeni (Labiafae) 

 h. Histochemical locaHzation of enzymes during wound vessel member 

 differentiation. Coleus blumeni (Labiatae) 



c. Morphogenesis and histochemistry in tissue culture; secondary phloem 

 from taproot. Daucus carota (Umbelliferae) 



d. Histochemistry of bud morphogenesis in tissue culture; vascular stem 

 explants. Nicotiana tabacum (Solanaceae) (in collaboration with Mrs. 

 J. L. GISSLER (RIEMAN) ) 



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