Cz 24 Dank 



CZAPIK, Miss A. B.Sc. — Zool. Dept of the Jagellonian Univ., KRAKOW 



(Cracow), St. Anne 6, Poland, 

 a. Development of the heart of Insects. Agelastica alni L. (Coleoptera) 

 DALCQ, A. M. M.D., 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. (Rodentia and Insecti- 

 vora) (in collaboration with coworkers) 



b. Regulation in blastula and gastrula stage. (Urodela and Anura) (in 

 collaboration with coworkers) 



DALES, R. P.. B.Sc. — Queen Mary College, Univ. of London, Mile End 



Rd, LONDON E. 1, England, 

 a. Breeding, larval development and ecology of Polychaetes. Nereis diversi- 



color (Nereidae), Tharyx marioni (Cirratulidae) , Heteromastus fili- 



formis (Capitellidae) . 

 DALTON, H. C. Ph.D., Prof. — Dept of Zool., New York Univ., NEW 



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

 a. Gene action controlling development of pigmentation in white and dark 



strains of Mexican axolotl. Siredon mexicanum (Amphibia) 

 DAMAS, H. F. C. Dr Sc, Agr. Zool. — Inst, de Zool. Ed. Van Beneden, 



Fac. des Sci., Dept Morphol. des Chordes, 22, Quai Ed. Van Beneden, 



LIEGE, Belgique. 

 a. Etude descriptive et comparative du developpement des Lamproies. 



Petromyzon mavinus, Lampetta fluviatilis et L. planed. (Cyclostomes) 

 DAN, Mrs J. C Ph.D. — Embryol. Section, Dept of Biol., Fac. of Sci., 



Tokyo Metropolitan Univ., Meguro-ku, TOKYO, Japan, 

 a. Phase contrast micromanipulation study of fertilization processes. Various 



species of Echinodermata 

 DAN, K. Ph.D., Rigaku Hakushi, Prof. — Fac. of Sci., Dept of Biol., 



Embryol. Section, Tokyo Metropolitan Univ., Meguro-ku, TOKYO, 



Japan. 



a. Research into causes of form change in early development of sea- 

 urchins, from pre-cleavage through metamorphosis. Various species of 

 Echinoidea 



b. Birefringence studies of dividing sea-urchin eggs. Various species of 

 Echinoidea 



D'ANCONA, U. Prof. — 1st. di Zool. et Anat. comp., Fac. di Sci., Via 

 Loredan 6, PADOVA, Italia, 

 a. Differentiation of the gonad in vertebrates, especially fishes. 



DANKMEIJER, J. Dr Med., Prof. — Anat.-Embryol. Lab. of the Univ. 

 of Leyden, Fac. of Med., Boerhaavekwartier, Wassenaarseweg, LEI- 

 DEN, Holland. 



a. Permeability of the placenta in rat and guinea-pig. Investigation with 

 isotopes. (Mammalia) (in collaboration with C. B. HEYN) 



b. Development of uterus and ovary in man. (Mammalia) (in collaboration 

 with Miss A. DEKKER) 



c. Development of diencephalon and hypophysis in man and mammals. 

 (in collaboration with W. LUYENDIJK and J. W. H. BOUR) 



d. Investigations on congenital heartmalformations; X-ray and anatomical 

 dissection; collateral circulations. Homo (Mammalia) (in collaboration 

 with H. A. SNELLEN and Miss R. M. COLLISTER) 



