Quer 75 Raw 



QUERNER. H. Dr rer.nat. — Inst, fiir exp. Krebsforschung der Univ. Hei- 

 delberg. Vossstrasse 3, HEIDELBERG. Deutschland 

 a. Hormonphysiologische Untersuchungen. (Cyprinodontidae, Teleostei) 

 h. Dif ferenzierung primarer und sekundarer Geschlechtsorgane in vitro 



(Cyprinodontidae, Teleostei) 

 RADECKA, Mrs E. M.Ph. — Zaklad Zool. Ogolnej. Inst. Zool., Uniw. we 



Wrodawiu, ul. Sienkiewicza 21, WROCLAW, Polska (Poland) 



(no data received over some years) 

 RAMSEY, Miss E. M. A.B., M.D. — Dept of Embryol., Carnegie Inst, of 



Washington, Wolfe and Madison Sts. BALTIMORE 5, Md, U.S.A. 

 a. Placentation. Study of marginal sinus and venous drainage of placenta. 



Macaca mulatta (Primates) 

 RAMULT. M. Ph.D. — Dept of Zool., Univ. of Edinburgh, West Mains 



Rd, EDINBURGH 9, Scotland (U.K.) 



(no data received on Nov. 1"'. 1953) 

 RANDALL, J. T. Prof., F.R.S. — M.R.C. Biophysics Res. Unit, King's 



Coll., Strand. LONDON W.C. 2, England 



(no data received over some years) 

 RANZI, S. F.I.I.E., Ph.D., Prof. — 1st. di Zool. e Anat. Comp., Univ. di 



Milano, Via Celoria 10, MILANO, Italia 



a. Proteins in embryonic determination. (Echinodermata and Amphibia) 



b. Protoplasmic structure. 



RANZOLI, F. Dr — 1st. di Zool. e Anat. comp.. Via Universita 4, MO- 

 DENA, Italia 



a. Nucleolar changes and cycle of the ribonucleic acids during oogenesis. 

 Patella coerulea (Gastropoda) 



b. Sexual differentiation and hermaphroditism. Hydroides norvegica (Sec- 

 pulidae, Polychaeta) 



RAPPAPORT Jr. R. B.S.. M.S., Ph.D. — Biol. Dept, Union Coll., 

 SCHENECTADY 8, N.Y.. U.S.A. 

 (no data received on Nov. \'\ 1953) 

 RAUNICH, L. Ph.D.. M.D. — 1st. di Anat. Comp., Via Belmeloro 8. 

 BOLOGNA (103), Italia 

 a. Development of blood and vascular system. Petromyzon (Cyclostomata) , 



Amia and Lepidosteus (Holostei) 

 h. Action of growth-substances on tail-regeneration. Rana, Bufo (Anuta) 



c. Determination of neural plate. Triton, Ambystoma (Urodela) 



d. Neural crest development. (Amphibia) 



e. Effect of low temperature on early development. (Amphibia) (in colla- 

 boration with P. PASQUINI) 



f. Action of carcinogenic hydrocarbons. (Amphibia) 



g. Ketosteroids during development (chemical detection). (Amphibia) 

 RAVEN, Chr. P. F.I.I. E., F.R.A., Dr Sc, Prof. — Zool. Lab. der Rijks 



Univ., Janskerkhof 3, UTRECHT, Holland 



a. Analysis of lithium action. Limnaea stagnalis (Gastropoda) (in collabo- 

 ration with Miss C. DINGER, W. J. van DONGEN, B. de GROOT, 

 Miss H. E. van HEYNINGEN and C. R. JANSSENl 



b. Influence of lithium on morphogenesis. Aplysia limacina (Gastropoda) 

 RAWLES, Miss M. E. Ph.D. — Dept of Biol., The Johns Hopkins Univ. 



Charles and 34th Sts, BALTIMORE 18, Md, U.S.A. 



