R u 98 Schecht 



RUDNICK. Miss D. Differentiation of early embryonic tissues in vitro. 

 Gallus. Ilia. 19. L. 



RUGH, R. (data not yet received). 



RUNNER, M. N. Experimental production of genetic and develop- 

 mental variations in genetically stable material by treatment of 

 gonads, germ cells and embryos. Mus musculus. IIIc. 2. M. 



Studies on the prenatal influences which produce congenital abnor- 

 malities in inbred. Mus musculus. Hid. 3. M. 



RUNNSTROM, J. A. M. (Cf. work on the Institute). Echinoderms. 



Illb. G. 



RUSSEL, E. S. Comparison of blood formation in yolk-sac. transfer to 

 liver, formation in liver, and transfer to bone-marrow in normal 

 embryos and those with severe macrocytic anemia due to W,W V 

 genes. Mus musculus. IIIc. 3. M. 



Erythrocyte count of normal and abnormal embryos from 12 — 18 



days. Abnormal embryos carry dominant genes WW, WW V , 

 W V W. Mus musculus. IIIc. 3. M. 



Description of gonad and especially germ-cell differentiation in 



normal and abnormal embryos. Embryos which carry WW, W V W, 

 and W V W V genes have abnormal gonads. Mus musculus. 



IIIc. 3. M. 

 RUUD, G. (no embryol. work in progress). 



SALZGEBER, Mile B. Sterilization et intersexualite chez l'embryon 

 de poulet par irradiation aux rayons X. Ilia. 17. d. L. 



SANDISON, Miss E. E. The developmental stages of ova and larvae 

 of barnacles with special reference to the naupliar stages and settle- 

 ment. Tetraclita serrata, Octomeris angulosa, Chthamalus dentatus, 

 Balanus algicola, B. trigonus, B. maxillaris and B. amphitrite (Cir~ 

 ripedia). I. 2a. D. 



SARA', M. Development of the gonads in Psychoda (Diptera). 



Illb. 17.D. 



SAUNDERS (data not yet received). 



SAVAY, Gy. Researches on the time of appearing of lipoids in the 

 embryonic cartilages. Vertebrates. Illb. 1 1 . c. V. 



(in collaboration with I. NAGY and L. BEREK) 



SAWIN, P. B. Study of intra-uterine influences upon embryonic growth, 

 differentiation, and organogenesis by means of ova and ovary 

 transplants between races known to differ genetically in adult body 

 size as determined by the general size factors and also by genetic 

 factors affecting specific regions of the axial skeleton. Oryctolague 

 cuniculus. IIIc. lb. M. 



(in collaboration with F. AVIS and D. DIETZ) 



Study of two unrelated genetic types of achondroplasia in the 



rabbit, ( 1 ) the type originating at the Rockefeller Institute and 

 (2) a new type discovered in California. Oryctolague cuniculus. 



IIIc. 3. M. 



SCHECHTMAN, A. M. Plasma protein development in the chick 



embryo. (in collaboration with G. W. NACE) Mb. 2c. C. L. 



Differentiation of the nucleus during embryological development. 



Chicken. (in collaboration with Ch. P. DAGG) IHb. 19. L. 



