Stephan 87 Struch 



b. Etude experimentale des anomalies et des suppleances vasculaires dans 

 I'aire extraembryonnaire et Tembryon. Gallus gallus (Aves) 

 STEPHAN— DUBOIS, Mrs Fr. DresSci. — Lab. de Zool. de la Fac. 

 des Sci. et Lab. d'Embryol. et Teratol. exper. du C.N.R.S., Inst, de Zool. 

 et de Biol, gen., 12 Rue de I'Universite. STRASBOURG, France 



a. Migration des neoblastes dans la regeneration. Facteurs qui declenchent 

 cette migration. Etude de I'arret de la migration. Euplanaria lugubds 

 (Turbellaria) 



b. Migration des neoblastes dans la regeneration. Tubifex tubifex et Lum- 

 briculus variegatus (Oligochaeta) 



STEPHENSON, N. G. M.Sc. — AUCKLAND Univ. Coll., New Zealand 



(no data received over some years) 

 STICH, H. Drrer.nat. — Max Planck-Inst.. WILHELMSHAVEN, 



Deutschland 



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

 STOCKARD, A. H. Ph.D. — Dept of Zool., Univ. of Michigan, ANN 



ARBOR, Mich., U.S.A. 

 a. Early development. Osmerus motdax (Malacopteiygii, Teleostei) 

 STONE. L. S. F.I.I.E., Ph.D., Prof. — Anat. Dept, School of Med.. Yale 



Univ. 



— Osborn Zool. Lab., Yale Univ., NEW HAVEN 11, Conn.. U.S.A. 



a. Regeneration of retina from pigment cells. (Amphibia) 



b. Development of vision in transplanted eyes. Ambystoma punctatum and 

 Trituvus V. viridescens (Urodela) 



c. Factors controlHng the inhibition and release of lens regeneration. 

 (Urodela) 



d. An experimental analysis of lens regeneration: a study of the causal 

 mechanisms involved in lens regeneration from the dorsal iris and their 

 relation to the processes of lens induction in the embryo. Triturus 

 viridescens, Salamandra salamandra, Ambystoma punctatum (Urodela) 



(in collaboration with R. W. REYER, Pittsburgh) 



e. Regeneration of retina from transplanted retinal pigment epithelium. 

 Triturus v. viridescens (Urodela) (in collaboration with H. STEINITZ) 



f. The role of retinal pigment cells in various types of retinal injuries. 

 Triturus v. viridescens (Urodela) (in collaboration with H. STEINITZ) 



g. Role of endocrines in regeneration of the retina and lens. Triturus v. 

 viridescens (Urodela) (in collaboration with H. STEINITZ) 



h. Physiological projection of the retinal quadrants on the optic tectum. 



Triturus v. viridescens (Urodela) (in collaboration with E. S. CRELIN) 

 j. Excision and rotation of the developing optic tectum and subsequent 



visual behavior. Ambystoma punctatum (Urodela) (in collaboration 



withE. S. CRELIN) 

 STRAUSS. F. M.D. — Anat. Inst., Biihlstr. 26, BERN, Schweiz 

 a. The oviduct during the passage of the egg. (Mammalia) 

 h. Comparative implantation. (Mammalia) 

 c. Comparative development of the brain. Cricetus auratus (Rodentia) (in 



collaboration with K. FEREMUTSCH. Waldau-Bern) 

 STRUCHLY, Z. Dr — Zakiad Zool. Ogolnej. Inst. Zool.. Uniw. we 



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



(no data received over some years) 



