LaV-Leh 



c. Total lipid and phospholipid changes during neuronal maturation. Cri- 

 cetus auratus (Rodentia) 



d. Immunochemical characteristics of developing brain. Cricetus auratus (Ro- 

 dentia) 



e. Immunochemical characteristics of developing lens tissue. Gallus gallus 

 (Aves) 



LaVELLE (WILSON), Mrs. F. B.A., M.A., Ph.D. — Dept. of Anat. Coll. 

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



a. Hormonal control of early sex differentiation. Cricetus auratus (Roden- 

 tia) 



b. Critical periods in neuronal differentiation. Cricetus auratus (Rodentia) 



c. Cytochemical differentiation of nervous tissue. Cricetus auratus (Roden- 

 tia) 



LAWRENCE, I. — Dept. of Anat., Med. School, Univ. of Kansas, 



LAWRENCE. Kansas, U.S.A. 

 LAWSON, Miss K. A. Ph.D. — Hubrecht Lab. (Intern. Embryol. Inst.), p/a 



Universiteitscentrum "De Uithof", UTRECHT, Netherlands 



a. Functional development of the parotid gland, in vivo and in vitro. 

 Rattus rattus (Rodentia) 



b. Culture of the regeneration blastema. (Urodela) 



c. Response of embryonic limb-bone rudiments to thyroid hormones i n 

 vitro. Gallus domesticus (Aves) 



LAZARD ( H AUBEN ) , Mrs. L. Lic.es Sci. — Lab. d'Embryol. et Teratol. ex- 

 per. du C.N.R.S., 49bis Avenue de la Belle Gabrielle, NOGENT sur 

 Marne (Seine), France 



— Lab. d'Embryol. exper. du Coll. de France, 1 1 Place Marcelin Ber- 

 thelot, PARIS Ve, France 



a. Limb regeneration. Ambystoma mexicanum (Urodela) 

 LEATHEM, J. H. Ph.D. — Rutgers Univ., NEW BRUNSWICK, N.J.. 

 U.S.A. 

 a. Nutritional influences on fetal development, and biochemical changes 

 associated with them. (Rodentia) 

 LEBLOND, C. P. M.D., Ph.D., Prof. — Dept. of Anat., McGill Univ., 

 MONTREAL, Quebec, Canada 



a. Development of the thyroid gland. (Vertebrata) 



b. The development of bones and teeth as shown on radioautographs with 

 the help of radio-carbon-containing substances. (Vertebrata) 



LE DOUARIN, G. H. — Lab. d'Embryol. et Teratol. exper. du C.N.R.S., 

 49bis Avenue de la Belle Gabrielle, NOGENT sur Marne (Seine), France 



— Lab. d'Embryol. exper. du Coll. de France, 1 1 Place Marcelin Ber- 

 thelot, PARIS Ve, France 



a. Action des rayons X sur la physiologie et le developpement du coeur em- 

 bryonnaire. Gallus gallus (Aves) 

 LE DOUARIN (CHAUVAC), Mrs. N. M. — Lab. d'Embryol. et Teratol. 

 exper. du C.N.R.S., 49bis Avenue de la Belle Gabrielle, NOGENT sur 

 Marne (Seine), France 



— Lab. d'Embryol. exper. du Coll. de France, 11 Place Marcelin Ber- 

 thelot, PARIS Ve, France 



94 



