Lallier 52 Leb 



b. Etude de I'induction. Triton taeniatus (Urodela) 



c. Insuline et developpement embryonnaire. Rana [usca (Anura) 



d. Etude de la determination. Rana [usca (Anura), Paracentrotus lividus 

 et Arbacia punctulata (Echinodermata) 



LAMY, F. M.A. — Dept of Biol., Massachusetts Inst, of Technology, CAM- 

 BRIDGE 39, Mass., U.S.A. 

 (no data received on Nov. 1^*, 1952) 



LANDAUER, W. Ph.D.. Prof. — Dept. of Genet., Coll. of Agric, Univ. 

 of Connecticut, Storrs Agric. Exper. Stat., STORRS, Conn., U.S.A. 



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

 chondrodystrophy" etc. Gallus domesticus (Aves) 



b. A causal analysis of teratogenic action of insuhn on developing embryos. 

 Gallus domesticus (Aves) 



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



d. Teratogenic action of boric acid in the embryo. Gallus domesticus (Aves) 

 LANGEVOORT, H. L. M.Drs — Anat.-Embryol. Lab. der Rijks Univ., 



Oostersingel 69, GRONINGEN, Holland, 

 a. Development of paraphysis and the circulation of the cerebrospinal fluid. 



Gallus (Aves) 

 h. Development of meninges. Gallus (Aves) 

 LANGMAN, J. — Anat. Lab., Vrije Univ., AMSTERDAM. 



(no embryological work in progress) 

 LARAMBERGUE, M. de Dr es Sc, Prof. — Lab. de Zool., Fac. des Sci.. 

 POITIERS, Vienne, France, 

 a. Recherches sur le developpement embryonnaire de I'appareil genital her- 

 maphrodite. (Gastropoda) 

 h. Differenciation des gametes chez des formes hermaphrodites. (Gastro- 

 poda) 

 c. Genetique des races euphalhques et aphalhques. Bulinus truncatus (con- 

 tortus) (Gastropoda) 

 LASH, J. W. Doct. Cand. — Univ. of Chicago, Dept of Zool, CHICAGO 

 37, 111., U.S.A. 



(no data received on Nov. 1=^ 1952) 

 LATIMER. H. B. Ph.D., Prof. — Dept of Anat., Med. School, Univ. of 

 Kansas, LAWRENCE, Kansas, U.S.A. 



a. A study of the relative proportions in both thickness and weight of the 

 free walls of the right and left ventricles of the heart, at various weights 

 and heart sizes. Various animals, including Homo 



b. A quantitative study of the prenatal increase in weight and also in per- 

 centage weight of the hypophysis, thyroid, thymus and suprarenal glands. 

 Canis (Carnivora) 



c. A study of two races, to determine the variation in relative weights of 

 the various organs and parts in a large and in a small form. Oryctolagus 

 cuniculus (Rodentia) 



LAURENT, M. — Lab. d'HistoL, Dept d'Embryol., Fac. de Med., 31 Rue 

 Lionnois, NANCY (Meurthe & Moselle), France, 

 a. Action de differentes substances chimiques sur le developpement 

 embryonnaire. (Amphibia et Rodentia) 

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

 MONTREAL, Quebec, Canada, 

 a. Development of the thyroid gland. (Vertebrata) 



