Dam 24 Davies 



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



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



LIEGE, Belgique. 

 a. Etude descriptive et comparative du developpement Petromyzon marinus, 



Lampetra fluviatilis et L. planed (Cyclostomata, Pisces) 

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



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



a. Experimental study of syngamy. (Echinoidea) 



b. Electron-microscope observation of spermatozoa under various experi- 

 mental conditions. ( Echinodermata) 



DAN, K. Ph.D., Rigaku Hakushi, Prof. — Embryological Section, Dept 

 of Biol., Fac. of Sci., Tokyo Metropohtan Univ., Meguro-ku, TOKYO, 

 Japan. 



a. Research into causes of form change in early development, from pre- 

 cleavage through metamorphosis. (Echinoidea) 



b. Birefringence studies of dividing eggs. (Echinoidea) 



c. Role of mitochondria in spermatocyte division. (Orthopteta, Insecta) 

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



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

 DEN, Holland. 



a. Permeabihty of the placenta. Investigation with isotopes. Mus rattus 

 and Cavia (Rodentia) (in collaboration with C. B. HEYN) 



b. Development of uterus and ovary. Homo (Primates) (in collaboration 

 with Miss A. DEKKER) 



c. Development of diencephalon and hypophysis. Homo (Primates) and 

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

 BOUR) 



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

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

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



DATKOWNA, H. Dr — Zaklad Anat. Porownawczej U.J. im. H. Hoyera, 

 KRAKOW, sw. Anny 6, Poland, 

 a. Osmotic pressure and embryos. Salmo ttutta (Teleostei) 

 h. Influence of hypertonic solutions upon muscles. Salmo trutta (Teleostei) 

 DAVIDSON, Miss P. B.Sc. — Commonwealth Sci. and Ind. Res. Org.. 

 McMaster Anim. Health Lab., Parramatta Rd, Glebe, SYDNEY. 

 N.S.W., Austraha. (Guest-worker from C.S.I.R.O., Wool Biol. Lab.. 

 17 Randle St, SYDNEY, N.S.W.) 



a. Induction of hair follicle formation. Mus musculus and Ovis (Mammalia) 

 in collaboration with Miss M. H. HARDY) 



b. Pigmentation processes in skin and hair in tissue culture. Mus musculus 

 (Rodentia) (in collaboration with Miss M. H. HARDY) 



c. Relation of dermis to epidermis in differentiation of skin and hairs by 

 in vivo and in vitro techniques. Mus musculus (Rodentia) 

 (in collaboration with Miss M. H. HARDY) 



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

 of Sheffield. SHEFFIELD. England (U.K.) 



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

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



b. Comparative electrocardiographic studies. (Mammalia and Aves) (in 

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



