Lub 58 Ly 



a. Study of developmental disturbances related to nutritional deficiences 

 investigated by application of anti-vitamins and anti-amino acids to the 

 intact egg and to explants (somites). In particular, it will be attempted 

 to define the factors which maintain the balance between myotome, 

 sclerotome and dermatome during differentiation of the somite and are 

 required for the normal development of the retina (possible connection 

 with retrolental fibroplasia of the premature human infant). (Aves) 

 (in collaboration with H. HERRMANN, J. McKENZIE and U. ROTH- 

 PELS) 



LODTKE, H. Dr, Apl. ao. Prof. — Zool. Inst, der Univ., Katharinenstr. 20, 

 FREIBURG i.Brsg., Deutschland. 

 a. Entwicklung der Sehleistung. Notonecta glauca (Heteroptera, Hemi' 



pteroidea, Insecta) 

 h. Entwicklung der Sehleistung. Mus rattus (Rodentia) 



LUMB, Miss E. S. Ph.D. — Dept of Biol., Coll. of Arts and Sci., Univ. 

 of Rochester, ROCHESTER 3, N.Y., U.S.A. 

 a. A cytochemical study of the nucleic acids in the differentiating spinal 

 nervous system. Gallus domesticus (Aves) 



LUNDBORG, H. A. — Embryol. dept. Histol. Inst., Karolinska Inst., Solna- 

 vagen 1, STOCKHOLM 60. Sweden, 

 a. Description of a case of malformation of the urinary bladder, related 

 to the "sand-glass bladder". Homo (Primates) 



LuSCHER, M. Dr — Zool. Anstalt, Univ. Basel. BASEL. Schweiz. 

 (no data received over two years) 



LUTHER. W. Dr Phil, Prof. — Zool. Inst, der Univ., MARBURG, 

 Deutschland. 

 (no data received over this year) 



LUTZ, H. Dr es Sc. — Lab. de Zool., Fac. des Sci., 1 Avenue Vercingetorix, 

 CLERMONT-FERRAND, France. 



a. Developpement du blastoderme pendant les premieres heures de I'incu- 

 bation. Anas (Aves) 



b. La polyembryonie experimentale; I'orientation des embryons. (Aves) 

 LUTZ— OSTERTAG, Mme Y. Lie. es Sci. — Lab. de Zool., Fac. des Sci., 



1 Avenue Vercingetorix. CLERMONT-FERRAND, France. 



— Lab. de Zool. de la Fac. des Sci. et Lab. d'Embryol. et Teratol. exper. 



du C.N.R.S., Institut de Zool. et de Biol, generale, 12 Rue de I'Univer- 



site, STRASBOURG, Frar^ce. 

 a. La genese de I'asymmetrie du tractus genital et la regression des canaux 



de Miiller par la methode d'explantations. Gallus (Aves) 

 h. Role des hormones dans la differenciation primaire du sexe. Gallus 



(Aves) (en collaboration avec Et. WOLFF) 

 LUYENDIJK, W. Arts — Anat. -Embryol. Laboratory of the University 



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

 DEN. Holland. 



a. Development of diencephalon and hypophysis. Homo (Primates) (in col- 

 laboration with J. DANKMEIJER) 



b. Development of hypothalamic nuclei. Homo; (Rodentia) 



LYON, Miss M. F. Ph.D. — Med. Res. Council. Inst, of Anim. Genet., 

 West Mains Rd., King's Buildings. EDINBURGH 9, Scotland (U.K.) 

 a. Developmental study of absence of otoliths. Mus musculus (Rodentia) 

 h. Developmental study of the zigzag mutant. Mus musculus (Rodentia) 



