Schnei 81 Sed 



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) 

 SCHNETTER. M. Dr phil. — Zool. Inst, der Univ., Katharinenstr. 20, 

 FREIBURG i.Brsg., Deutschland. 



a. Differenzierungsleistungen isolierter Eiteile in der Embryonalentwicklung. 

 Apis mellifica (Hymenoptera) 



b. Die Bedeutung des Dottersystems in der Embryonalenwicklung. Apis 

 mellifica (Hymenoptera) 



SCHOLTEN, G. — Zool. Lab. der Rijks Univ., Janskerkhof 3, UTRECHT, 



Holland, 

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

 boration with W. G. BRAAMS, A. C. J. BURGERS, P. F. ELBERS, 



W. L. M. GEILENKIRCHEN. J. ISINGS. Miss T. C. M. KOE- 



VOETS, Chr. P. RAVEN and M. VROMAN) 

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



Mass., U.S.A. 



(no data received) 

 SCHREIBER, B. Dott. Sci. Nat., Prof. — 1st. di Zool. e Anat. Comp., 



Via Celoria 10, MILANO, Itaha. 

 a. Bone induction. (Amphibia) 

 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 to ascertain their derivatives and 



especially the origin of the parathyroids. Gallus domesticus (Aues) (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 I'Universite, STRASBOURG, France. 



a. Problemes relatifs a I'origine des cellules de regeneration. Triturus 

 (Utodela) 



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

 posterieur de I'embryon, sous I'influence des rayons X. Gallus domesticus 

 (Aves) 



SCHWINCK, Frl I. Dr rer. nat. — Zoologisches Institut der Universitat 



und Max-Planck-Institut fur Biologic. Holderlinstr. 12, TUBINGEN, 



Deutschland. 

 a. Metamorphoseveranderungen der Epidermis und inkretorischer Organe. 



Panorpa (Mecoptera, Insecta) 

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



(no data received over this year) 

 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 tadpoles. Bufo lentiginosus (Anuva) 



b. Stages in normal development. Bufo regulatis (Anura) 



c. The development of skull and visceral muscles during metamorphosis. 

 Xenopus laevis (Anura) (Normal Table) 



d. The metamorphosis of the hyobranchial skeleton. Bufo regularis (Anura) 

 (in collaboration with Milad I. MICHAEL) 



