c. Nature of vitelline coat of egg. (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 cleavage. Triturus spec. (Urodela) 



b. Protein SH in the ova. (Echinoidea) 



c. Lunar periodicity of spawning. Comanthus japonica (Crinoidea) 



D' ANCON A ( LUNETTA ) , Mrs. G. Ph.D. — 1st. di Istol. ed Embriol., Univ. 

 di Palermo, Via Archirafi 18. PALERMO, Italia 

 a. Determinations of enzyme activities during development. (Mollusca; Asci- 

 diae) 

 D'ANCONA, U. Dr.Nat.Sci., F.I.I.E.. Prof. — 1st. di Zool. e Anat. Comp., 

 Fac. di Sci., Via Loredan 10. PADOVA, Italia 

 a. Differentiation of the gonad. (Vertebrata, esp. Pisces) 

 DANIEL, J. C, Jr. B.S., M.S., Ph.D. — Dept. of Biol.. Univ. of Colorado, 

 BOULDER, Colo., U.S.A. 

 a. Culture of embryos. ( Lagomorpha; Rodentia) 

 h. Regeneration of embryos. (Lagomorpha; Rodentia) 

 c. Developmental physiology. Coturnix coturnix (Aves) 

 DANKMEIJER. J. Med.Dr., M.I.I.E., Prof. — Anat.-Embryol. Lab., Fac. of 

 Med., State Univ. of Leiden, Wassenaarseweg, Boerhaavekwartier. 

 LEIDEN, Netherlands 



a. Normal and abnormal development of the heart. Homo sapiens and other 

 Animalia (in collaboration with J. A. LOS) 



b. Development of thyroid gland, (in collaboration with P. J. BROU- 

 WER) 



c. Development of uterus. Homo sapiens (Primates) 



d. Heart and vessels in congenital malformations. Homo sapiens (Primates) 

 (in collaboration with H. A. SNELLEN. Miss A. DEKKER and Miss 

 H. C. van INGE) 



e. Development of the stomach. Homo sapiens (Primates) (in collaboration 

 withM. MIETE) 



D'ANNA, T. Ph.D. — 1st. di Zool., Via Archirafi 1 8, PALERMO, Italia 



a. Radioautographic investigations in embryonic development. (Ascidiae) 



b. Microrespirometric investigation in embryonic development. 

 DANNEEL, R. Dr., Prof. — Zool. Inst, der Univ.. BONN, Deutsche Bundes- 



republik 

 a. Entstehung von Farbmustern. (Pisces; Aves; Mammalia) 

 DARLINGTON, D. M.B., Ch.B. — Dept. of Anat., Med. School, Univ. of 



Birmingham, Edgbaston, BIRMINGHAM 15, England 

 DASGUPTA, B. M.Sc, Ph.D. — Zool. Lab., Darjeeling Government Coll.. 



DARJEELING, W. Bengal, India 

 DAVENPORT, R. Ph.D. — Dept. of Zool., Univ. of Illinois. URBANA, 

 111.. U.S.A. 

 a. Cytochemical studies of cytoplasmic basic proteins occurring during oogen- 

 esis and early development. (Mollusca; Echinodermata; Ascidiae; Am- 

 phibia) 

 DAVID, G. Dr.en Med. — Lab. d'Embryol., Fac. de Med., 45 Rue des 

 Sts. Peres, PARIS Vie. France 

 a. Facteurs Rhesus. Homo sapiens (Primates) 



39 



