Ringcrtz-Rov 



a. On the embryonic sulphate metabohsm. Autoradiographic studies with 



radiosulphate. Mas. Rattus (Rodentia) 

 h. Histochemical studies on the brain. Mus (Rodentia) 

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



EUGENE. Ore., U.S.A. 

 ROBERTSON, G. G. B.A.. B.Sc. Ph.D.. Prof. — Div. of Anat.. Med. 

 Units Div.. Fac. of Biol. Sci.. Univ. of Tennessee, MEMPHIS 3. Tenn., 

 U.S.A. 

 a. Virus-induced abnormalities in embryos. Galliis domesticus (Aves) 

 h. Analysis of growth rates of prenatal ossification centers. Homo 

 (Primates) 

 ROCCA, E. Dr Biol. Sci. — 1st. di Zool. e Anat. comp., Univ. di Milano, 

 Via Celoria 10, MILANO, Italia 

 a. Flow birefringence and physical chemistry of embryonic proteins. (Am- 

 phibia) 

 ROCK. }. M.D. — Free Hospital for Women, 245 Pond Ave. BROOK- 

 LINE, Mass., U.S.A. 

 a. Histochemical observations on early fertilized ova of less than H days 

 age. Homo (Primates) (in collaboration with A. T. HERTIG, W. J. 

 MULLIGAN and Miss E. C. ADAMS) 

 ROLLHAUSER. Dr Med. — Anat. Inst, der Univ., Robert Kochstr. 6. 

 MARBURG/Lahn, Deutschland 

 (no embryological work in progress) 

 ROLLHAUSER— ter HORST, Mrs }. O. B. Dr rer.nat. — Anat. Inst, der 

 Univ.. Robert Kochstr. 6, MARBURG/Lahn, Deutschland 

 a. Reaktion verschieden vorbehandelten Gastrula-Ektoderms auf denselben 

 heterogenen Induktor. Behandlung der Gastrulae mit Hormonen, NaF, 

 Butylalkohol u.a. Mit dem isolierten Ektoderm dieser Gastrulae werden 

 Stucke erwachsener Triton-Leber umhiillt. Triton alpestris (Urodela) 

 ROMANI. Miss M. L. Dr — 1st. di Zool. e Anat. comp.. Via Universita 4, 

 MODENA, Italia 

 a. Activity of sex hormones on the sex differentiation of gonads and Bid- 

 der's organs. Biifo bufo (Anura) (in collaboration with Miss L. LUGLI) 

 ROMANKOWOWA. Mrs A. M.Sc. — Zaklad Anat. Porownawczej, Inst. 

 Zool. Uniw., ul. Sienkiewicza 21, WROCLAW. Poland 

 a. Development of sesamoid bones in the carpus. (Rodentia, Insectivora) 

 ROMANOFF. A. L. B.S., M.S.. Ph.D.. Prof. — Lab. of Chem. Embryol., 

 Cornell Univ.. c/o Rice Hall 105, ITHACA, N.Y., U.S.A. 



a. Descriptive, experimental and physiological embryology. (Aves) 



b. Genetical embryology. (Aves) 



c. Pathological embryology. (Aves) 



d. Regeneration. (Aves) 



RONCORONI, G. — 1st. di Anat. umana norm. dell'Univ. di Milano, Via 

 Mangiagalli 31. MILANO, Italia 



a. Histochemical study of histogenesis of cartilage. Mus rattus (Rodentia) 

 (in collaboration with Mrs V. PRETO PARVIS) 



b. Studies of solubility of embryonic glycogen. (Mammalia) 



ROOFE. P. G. Ph.D.. Prof. — Dept of Anat.. Med. School, Univ. of Kan- 

 sas. LAWRENCE, Kansas. U.S.A. 

 a. Cytochcmical and microchemical study of the developing nervous system 

 and its relationship to developing behaviour patterns. Ambystoma macu- 



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