Schn 79 Sedra 



SCHNEIDER, M. }. M.S. — Univ. of Colorado, Med. Center, Dept of 

 Pediatrics, 4200 east Ninth Ave, DENVER 7, Col., U.S.A. 



a. Chemistry of muscle differentiation, determination of actin and myosin 

 and phosphate fractions in muscle of chick embryos after the 7th day 

 of development (concluded) (Aves) (in collaboration with H. HERR- 

 MANN and B. J. NEUKOM) 



b. Determination and fractionation of nucleoproteins and determination of 

 enzymes in chick somites from the 2nd to the 5th day of incubation and 

 in differentiating chick muscle from the 7th day of incubation to hatching. 

 (Aves) (in collaboration with H. HERRMANN and B. J. NEUKOM) 



c. Chemical fractionation of cell nuclei and mitochondria of differentiating 

 muscle of chick. (Aves) (in collaboration with H. HERRMANN and 

 B. J. NEUKOM) 



d. Histological examination of muscle development including quantitative 

 determinations of volume of somite columns, of cell number and of mitotic 

 index of somites, (in collaboration with H. HERRMANN and B. J. 

 NEUKOM) 



SCHOTTE, O. E. Dr, Prof. — Dept of Biol., Amherst Coll., AMHERST, 



Mass., U.S.A. (no data received) 



SCHREIBER, B. Prof. — 1st. di. Zool. e Anat. comp., Via Celoria 10, 



MILANO, Italia, 

 a. Bone induction. (Amphibians) 

 SCHRIER, Miss J. — Dept of Zool. and Entomol., Div. of Sci., Iowa State 



Coll., AMES, Iowa, U.S.A. 

 a. Experiments on the visceral pouches of the chick to ascertain their 



derivatives and especially the origin of the parathyroids. Gallus domes- 



ticus (Aves) (in collaboration with H. L. HAMILTON) 

 SCHUE, Mile M. Lie. es Sc. — Lab. de Zool. de la Fac. des Sci. et Lab. 



d'Embryol. et Teratol. exper. du C.N.R.S., Institut de Zool. et de Biol. 



generale, 12, Rue de l'Universite, STRASBOURG, France. 



a. Problemes relatifs a l'origine des cellules de regeneration chez les 

 Urodeles. Triturus (Amphibia) 



b. Probleme de la reduction de la taille et du nombre de doigts du membre 

 posterieur de l'embryon de Poulet, sous l'influence des rayons X. Gallus 

 domesticus (Aves) 



SCHWINCK, Frl. I. — Zool. Inst, der Univ. Tubingen, u. Max-Planck-Inst. 



fur Biol., Holderlinstr. 12, TUBINGEN, Deutschland. 

 a. Metamorphoseveranderungen der Epidermis und inkretorischer Organe 



bei Panorpa. (Insecta) 

 SCOTT, A. C. Ph.D. — Union Coll., SCHENECTADY, N.Y., U.S.A. 



a. Factors affecting germinal vesicle breakdown in the egg of Chaetopterus 

 pergamentaceus. (Vermes) 



b. Effect of respiratory-inhibitors on early development of marine eggs. 

 Urechis caupo (Vermes) and Arbacia punctulata and Dendraster eccen- 

 tticus ( Echinodermata) 



c. Effect of temperature on the rate of intrusion of the first cleavage furrow 

 in Arbacia punctulata. (Echinoidea) 



SEDRA, Shokralla N. B.Sc, M.Sc, Ph.D., F.Z.S. — Dept of Zool., Farouk 

 I Univ., Moharram Bey, ALEXANDRIA, Egypt, 

 a. On the morphology of the suprarostral cartilage and the mandibular 

 arch of the tadpoles of Bufo lentiginosus. (Amphibia) 



