Czihak-De F 



a. Entwicklung und Storung der Bilateralsymmetrie des Pluteus. Paracen- 

 trotus spec, Psammechinus spec. (Echinoidea) 



b. Entwicklung und Differenzierung der Coelome beim Pluteus. Paracen- 

 trotus spec, Psammechinus spec. (Echinoidea) 



DAGG, C. P. B.S., Ph.D. — Roscoe B. Jackson Memorial Lab., BAR HAR- 

 BOR, Me., U.S.A. 



a. Environmental influences on embryonic development. Mus musculus 

 (Rodentia) 



b. Developmental genetics. Mus musculus (Rodentia) 



DAHL, E. Prof . — Embryol. Dept., Zool. Inst., Univ. of Lund, LUND, 



Sweden 

 DAILLIE, J. — Lab. de Zool. exper., Fac des Sci., 16 Quai CI. Bernard, 



LYON, France 

 a. Physiologie de la glande sericigene. Bombyx mod (Lepidoptera) 

 DALCQ, A. M. M.D., F.I.I.E., Prof. —Lab. d'Anat. et d'Embryol, Fac. de 



Med. de l'Univ., 97 Rue aux Laines, BRUXELLES, Belgique 



a. Cytochemistry of early stages of development. (Ascidiae; Mammalia) 



b. ATP-ase in eggs. (Mollusca and other Invertebrata; Mammalia) 

 DALMON, J. — Lab. de Zool. exper., Fac des Sci., 16 Quai CI. Bernard, 



LYON, France 

 a. Metabolisme des acides nucleiques. Arbacia lixula (Echinoidea) 

 DALTON, H. C. Ph.D. — Dept. of Biol, Univ. Coll., New York Univ.. 

 NEW YORK 53, N.Y., U.S.A. 

 a. Role of hypomeric mesoderm in expression of genetic patterns of pig- 

 mentation. Siredon mexicanum (Urodela) 

 DAMAS, H. F. C. Dr.Sc, Agr.Zool., M.I.I.E., Prof. — Dept. Morphol, 

 Inst, de Zool. Ed. Van Beneden, Fac des Sci., 22 Quai Ed. Van Bene- 

 den, LIfiGE, Belgique 

 a. Etude descriptive et comparative du developpement. Petromyzon mad- 

 nus, Lampetra [luviatilis, L. planed (Cyclostomata) 

 D'AMELIO, V. Ph.D. — 1st. di Anat. Comp., Univ. di Palermo, Via Archi- 

 rafi 22, PALERMO, Italia 

 a. Formation of hemoglobin. Gallus spec. (Aves) 

 DAMERON, Miss F. Lic.es Sci. — Lab. d'Embryol. exper. du Coll. de 

 France, 1 1 Place Marcelin Berthelot, PARIS Ve, France 

 — Lab. d'Embryol. et Teratol. exper. du C.N.R.S., 49bis Avenue de la 

 Belle Gabrielle, NOGENT sur Marne (Seine), France 



a. L'influence de la temperature sur la croissance et la differenciation d'or- 

 ganes embryonnaires cultives in vitro. Gallus gallus (Aves) 



b. Morphogenese du poumon par les methodes de dissociation et de reas- 

 sociation en culture i n v i t r o. Gallus gallus (Aves) 



DAN, Mrs. J. C. Ph.D., M.I.I.E. — Embryol. Section, Dept. of Biol, Fac. of 

 Sci., Ochanomizu Univ., Bunkyo-ku, TOKYO, Japan 



a. Electron microscope observation of spermatozoa under various experi- 

 mental conditions. (Annelida; Mollusca; Echinodermata) 



b. Sperm entry. (Nereidae, Polychaeta) 



c Fine structure of egg surface. (Asteroidea, Echinodermata) 

 DAN, K. Ph.D., F.I. I.E., Prof. — Embryol. Section, Dept. of Biol., Fac. of 

 Sci, Tokyo Metropolitan Univ., Setagaya-ku, TOKYO, Japan 



a. Mechanism of polar body formation. (Mollusca) 



b. Protein SH in the ova. (Echinoidea) 



34 



