LANDAUER, W. Ph.D., F.I. I.E., Prof. — Dept. of Anim. Genet., Storrs 

 Agric. Exper. Station, Univ. of Connecticut, STORRS, Conn., U.S.A. 



a. Developmental studies on various mutants, such as "duplicate", "creeper" 

 etc. Gallus domesticus (Aves) 



b. A causal analysis of teratogenic action of insulin and other chemical com- 

 pounds on developing embryos. Gallus domesticus (Aves) 



c. Hereditary (lethal) cyclocephaly and cyclopia. Gallus domesticus (Aves) 



d. The nature and significance of phenocopies. Gallus domesticus (Aves) 



e. The genetic role of sporadic variations. Gallus domesticus (Aves) 

 LANFRANCHI, A. Dr.Biol.Sci. — 1st. di Zool. e Anat. comp. dell'Univ., Via 



A. Volta 4, PISA, Italia 

 a. Action of gamma- and X-rays on development. (Planariidae, Turbel- 

 laria) 

 LANGMAN, J. M.D., Ph.D., M.I. I.E., Prof. — Dept. of Anat., McGill Univ., 

 MONTREAL. Quebec, Canada 



a. Influence of antibodies and antigens on growth and development. Gallus 

 domesticus (Aves) 



b. Antigenic properties of reproductive organs. (Rodentia) 



c. Immuno-embryological research into eye development. Gallus domesticus 

 (Aves) (in collaboration with J. CAMPBELL) 



LANOT, R. Lie. es Sci. — Lab. de Zool. et d'Embryol. exper., Inst, de Zool. 



et de Biol, gener., 12 Rue de l'Universite, STRASBOURG, France 

 a. Malformations axiales: analyse causale de Taction teratogene du bleu 



trypan. Gallus gallus (Aves) 

 LARAMBERGUE, M. de Dr. es Sci., Prof. — Lab. de Zool. et Biol, anim., 



Fac. des Sci., POITIERS, Vienne, France 

 LASH, J. W. Ph.D. — Dept. of Anat., School of Med., Univ. of Pennsylvania, 



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

 LA SPINA, Miss R. Ph.D. — 1st. di Zool., Via Archirafi 18, PALERMO, 



Italia 



a. Cytochemical investigations on eggs. (Ascidiae) 



b. The analysis of the colour pattern. Discoglossus pictus (Anura) 



c. Analysis of embryonic development. (Ctenophora) 



LATIMER, H. B. Ph.D., Prof. (Emer.) — Dept. of Anat., Med. School, 

 Univ. of Kansas, LAWRENCE, Kansas, U.S.A. 



LAUFER, H. B.S., M.A., Ph.D. — Dept. of Biol., Johns Hopkins Univ., Char- 

 les and 34th Sts., BALTIMORE 18, Md., U.S.A. 



a. The role of stage and tissue specific macromolecules in development. 

 (Saturniidae, Lepidoptera) , Chironomus thummi (Diptera) 



b. Molecular interactions in the development of salivary glands. Chirono- 

 mus thummi and other spp. (Diptera) 



c. Tissue interactions during limb regeneration. (Amphibia) 

 LAVARACK, J. O. M.B., B.S., Ph.D. — Anat. Dept., Univ. of Melbourne, 



PARKVILLE, N.2, Victoria, Australia 

 a. Histochemical investigation of early neural, notochordal and related tis- 

 sues. Gallus gallus (Aves) 

 LaVELLE, A. B.S., M.A., Ph.D. — Dept. of Anat., Coll. of Med., Univ. of 

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



a. Cytodifferentiation of neurons. Cavia cobaya, Cricetus auratus (Roden- 

 tia) 



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



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