Des 26 Don 



DESCLAUX, P. Prof. agr. — Lab. d'Embryol., Fac. de Med., 15, Rue 

 Ecole de Med, PARIS Vie, France. 



a. Embryologie descriptive du cerveau et specialement du diencephale. Rat 

 (Mammi feres) 



b. Influence teratogene des intoxications maternelles. Femme et Rat (Mam- 

 mi feres) 



DETH, J. H. M. G. van M.Dr — Anat.-Embryol. Lab. der Rijks Univ., 

 Janskerkhof 3, UTRECHT, Holland. 



a. Determination of sex in birds and mammals. Gallus domesticus and Cavia 

 cobaya 



b. Origin of the asymmetry of the embryo. Gallus domesticus (Aves) 



c. Lens induction in vitro. Gallus domesticus (Aves) 



d. Tooth development. Rat (Mammalia) 



DETWILER, S. R. Dr, Prof. — Dept of Anat, Coll. of Phys. and Surg., 



Columbia Univ., 630, West 168th St, NEW YORK City, N.Y., U.S.A. 



(no data received) 

 DEUCHAR, Miss E. M. B.A. — Univ. Dept of Genet., Inst, of Anim. 



Genet., West Mains Rd, King's Buildings, EDINBURGH 9, U.K. 

 a. Study of inductions obtained when cells from different regions of primary 



organizer are recombined in various proportions after disaggregation 



in alkali. (Amphibia) 

 DEVILLERS, Ch. Dr es Sc. — Lab. d'Embryogenie comp., Coll. de France, 



Place Marcelin Berthelot, PARIS Ve, France. 



a. Mecanique de la gastrulation chez la Ttuite, Salmo irideus. (Pisces) 

 Nature et fonction du cortex. 



b. Etude des substances necessaires a la croissance et a la differentiation 

 du blastoderme de l'oeuf de Truite, S. irideus, separe de son vitellus et 

 cultive in vitro. (Pisces) (en collaboration avec N. SKREB) 



c. Etude experimental de la formation des os dermiques craniens de 

 Salmo fario. (Pisces) 



d. Translocations latitudinales dans la gastrula d'Urodele. Pleurodeles et 

 Triton 



DIDING, S. Fil. mag. — Embryol. Dept, Zool. Inst., Univ. of Lund, LUND, 

 Sweden, 

 a. Development of Brachiopoda, esp. Crania. 

 DIETZ, D. — Roscoe B. Jackson Memorial Lab., Box 558, BAR HARBOR, 

 Me, U.S.A. 



(no data received over this year) 

 DODDS, G. S. B.A., M.A., Ph.D., Prof. — School, of Med., West Virginia 

 Univ., MORGANTOWN, W.Va., U.S.A. 

 (no data received over this year) 

 DOLLANDER, A. Dr, Delegue Agr. — Lab. d'Anat. et d'Histol., Dep. 

 d'Embryol., Fac. de Med., Inst. Anat., 31, Rue Lionnois, NANCY 

 (Meurthe & Moselle), France, 

 a. Etude du revetement superficiel de l'oeuf. Triturus helveticus, Tr. aU 

 pestris et Tr. cristatus (Amphibia) 

 b. Organogenese du poumon. Homo (Mammalia) (en collaboration avec 

 A. A. BEAU) 

 DONALDSON, J. C. M.D., Prof. — Dept of Anat., School of Med., Univ. 

 of Pittsburgh, PITTSBURGH 13, Pa, U.S.A. 

 a. Studies on the developing human pancreas. (Mammalia) 



