LEROY, P. J. M. Dr. es Sci. — Lab. d'Histophysiol., Coll. de France, 4 Ave- 



nue Gordon Bennett, PARIS XVI, France 

 LEUSSINK, J. A. M.Sc. — Hubrecht Lab., Intern. Embryol. Inst., Janskerk- 



hof 2, UTRECHT, Netherlands 

 a. Relations between size and differentiation of inductor and of induced 



structures in neural induction. (Urodela) 

 LEVAK, Miss B. M.Sc. — Inst, de Biol.; Fac. de Med., Salata, ZAGREB, 



Yougoslavie 

 a. Investigation of differentiation of the embryo in the anterior chamber of 



the eye. Rattus norvegicus albinus (Rodentia) (in collaboration with N. 



SKREB) 

 LEVI, G. L. Dr., F.I. I.E., Prof. (Emer.) — 1st. di Anat. umana, Fac. di 



Med., Corso Massimo d'Azeglio 52, TORINO, Italia 

 LEVI-MONTALCINI, Miss R. M.D., F.I.I.E. — Dept. of Zool., Washing- 

 ton Univ., ST. LOUIS 30, Mo., U.S.A. 

 a. Neuro-embryology. (Aves) 

 LEWIS, W. H. Dr., F.I.I.E., Prof. (Emer.) — Wistar Inst, of Anat. and 



Biol., PHILADELPHIA 4, Pa., U.S.A. 

 LHOTKA, J. F. M.D., Ph.D. — Dept. of Anat., School of Med., Univ. of 



Oklahoma, OKLAHOMA City, Okla., U.S.A. 

 a. Distribution of polysaccharides in the developing vascular system. Rattus 



spec. (Rodentia) 

 LI, Mrs. Yu-Ying FU Ph.D. — Biochem. Dept., Howard Hughes Med. Inst., 



1800 N.W. 10 Avenue, MIAMI 36, Florida, U.S.A. 



a. Thyroid function in the fetus. Rattus spec, Homo sapiens (Mammalia) 



b. Effects of P 32 and C 14 on the embryo. (Orthoptera) 



LIEBER, Miss A. Dr.rer.nat. — Anat. Inst, der Univ., Robert Kochstr. 6, 



MARBURG/Lahn, Deutsche Bundesiepublik 

 LIEDKE, Mrs. K. BEYER Ph.D. — Dept. of Biol. Sci., Fairleigh Dickinson 



Univ., TEANECK, N.J., U.S.A. 



a. Further studies with purine analogues in development, involving histo- 

 chemistry and tissue culture 



b. Induction and differentiation studies using tritiated thymidine and cyti- 

 dine. Rana pipiens (Anura) 



LILLELUND, K. Dr. — Inst, fur Fischereibiol. der Univ. Hamburg, Hol- 

 stenwall 24, HAMBURG 36, Deutsche Bundesrepublik 

 a. Development of eggs and fry under different hydrological conditions 

 (temperature, salt proportion). Osmerus e. epetlanus (Teleostei) 



LIMBORGH, J. van M.D. — Anat.-Embryol. Lab., State Univ., Janskerkhof 

 3A, UTRECHT, Netherlands 



a. Origin of the asymmetry of the gonads. Anas boschas (Aves) 



b. Sex differentiation. Anas boschas (Aves) 



LINDAHL, P. E. Fil.Dr., F.I.I.E., Prof. — Inst, of Zoophysiol., Univ. of 



Uppsala, UPPSALA, Sweden 



(no embryological work in progress) 

 LINDBERG, N. O. H. Phil.Dr. — Wenner-Gren's Inst, for exper. Biol., 



Norrtullsgatan 16, STOCKHOLM Va., Sweden 

 LINDH, J. Med.D. — Dept. of Anat., Univ. of Lund, Biskopsgatan 7, 



LUND, Sweden 

 a. Prenatal development of the gonads. Mesocticetus spec, Rattus spec 



(Rodentia) 



83 



