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

 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) 

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

 of Med., State Univ., 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 and teeth (investigations with radio-active 

 isotopes), (in collaboration with P. J. BROUWER) 



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. vanlNGEN) 



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

 with M. MIETE) 



D'ANNA, T. Ph.D. — 1st. di Zool., Via Archirafi 18, PALERMO, Italia 

 a. Radioautographic investigations in embryonic development. (Ascidiae) 

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



Birmingham, Edgbaston, BIRMINGHAM 15, England 

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

 DARJEELING, West Bengal, India 

 a. The development of a parasitic form on living toads. Lucilia porphyrina 

 (Diptera) 

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

 LYON, France 

 a. Physiologie et genetique du developpement et de la croissance. Droso* 

 phila melanogaster (Diptera) 

 DAVIES, D. H. M.Sc, Ph.D., Prof. — Oceanographic Research Inst., P.O. 

 Box 736, DURBAN, South Africa 

 a. General embryology. (Carcharinidae, Selachii) 

 DAVIES, F. M.D., D.Sc, Prof. — Dept. of Anat., Fac. of Med., Univ. of 

 Sheffield, SHEFFIELD, England 

 a. Histological studies of conducting system of the heart. (Mammalia) (in 

 collaboration with E. T. B. FRANCIS, Dept. of Zool.) 

 DE BEER, Sir G. R. F.I.I.E., Prof. — 39 Shrewsbury House, Cheyne Walk, 



LONDON S.W. 3, England 

 DECHAMBE, Miss C. — Lab. de Biol, anim., Fac. des Sci. de Bordeaux, 351 

 Cours de la Liberation, TALENCE (Gironde), France 



a. Modalites et facteurs de formation de l'ostium. (Anura) 



b. Etude experimentale de la metamorphose de l'appareil excreteur.f Anura) 

 DECK, J. D. B.S., M.A., Ph.D. — Dept. of Anat., School of Med., Univ. of 



Virginia, CHARLOTTESVILLE, Va., U.S.A. 



a. The effects of reducing innervation on larval forelimb regeneration. Am- 

 bystoma maculatum (Urodela) 



b. The partially denervated larval forelimb studied with the electron micro- 

 scope. Ambystoma maculatum (Urodela) 



DE FEO, V. J. B.S., M.S., Ph.D. — Dept. of Anat., Coll. of Med., Univ. of 

 Illinois, 1853 W. Polk St., CHICAGO 12, 111., U.S.A. 



35 



