a. Experimental neuro-embryology 

 HULTIN, J. M. T. Ph.D., M.I. I.E. — Wenner-Grens Inst, for exper. Biol., 

 Norrtullsgatan 16, STOCKHOLM Va., Sweden 

 a. The role of the different cell components in determination and dif- 

 ferentiation. (Echinoidea) 

 HUMMEL, Miss K. P. Ph.D. — Roscoe B. Jackson Memorial Lab., BAR 

 HARBOR, Me., U.S.A. 



a. Studies on histogenesis of anomalies resulting from the gene "disorgani- 

 zation". Mus musculus (Rodentia) 



b. Studies on the development of situs viscerum inversus resulting from a 

 recessive gene. Mus musculus (Rodentia) 



HUMPHREY R R. A.M., Ph.D., F.I.I. E., Prof. — Dept. of Zool., Indiana 

 Univ., BLOOMINGTON, Ind., U.S.A. 



a. Experimental and genetic studies on certain lethal and sub-lethal traits. 

 Ambystoma mexicanum (Urodela) 



b. Studies on maternal inheritance (auxocytoplasmic inheritance) of certain 

 lethal or sub-lethal traits. Ambystoma mexicanum (Urodela) 



c. Cytological studies on a maternal effect in blastulae. Ambystoma mexica- 

 num (Urodela) (in collaboration with R. W. BRIGGS) 



HUMPHREY, Miss T. M.D., Ph.D., M.I.I.E. — Dept. of Anat., School of 

 Med. Univ. of Pittsburgh, 820 Health Professions Bldg., PITTSBURGH 

 13, Pa., U.S.A. . 



a. Continuation of studies on the trigeminal nerve in fetuses. Morphological 

 study based on serially sectioned, pyridine silver impregnated embryos. 

 Correlation of the anatomical findings on embryos with neurological 

 observations and neurosurgical procedures. Homo sapiens (Primates) 



b. Pancreatic developmental studies. Homo sapiens (Primates) 



c. Responses of fetuses to double simultaneous stimulation. Homo sapiens 

 (Primates) (in collaboration with D. HOOKER) 



d. Pyramidal tract development correlated with cortical differentiation. 

 Homo sapiens (Primates) 



HUMPRIES, A. A., Jr. Ph.D. — Dept. of Biol., Emory Univ., ATLAN 1 A 

 22, Ga.', U.S.A. 



a. Natural inhibition of meiosis in unfertilized oocytes. Triturus vindescens 



(Urodela) 



b. Developmental genetics. Triturus viridescens (Urodela) 



c. Chemistry and physiology of egg jellies. (Amphibia) AXT ^ A ^ 

 HUNT E. L. Ph.D., Prof. — Dept. of Biol., Emory Univ., ATLANTA 22, 



Ga., U.S.A. 



a. Studies on the distribution of radio-iodine. (Amphibia) 



b. Studies on the estrus cycle and gestation in alloxan-diabetic animals. 

 Rattus noruegicus (Rodentia) 



HUYGNARD, C. Dr. en Med., Dr.es Sci. — Lab. d'Embryol., Fac. de 

 Med., 45 Rue des Sts. Peres, PARIS Vie, France 

 a. Desensibilisation a la greffe. Mus rattus (Rodentia) _^ 



HUYNH, V. A. — Lab. d'Hormonol. et de Cytol. Exper., Ecole pratique des 

 Hautes Etudes, 111, Rue L. M. Nordmann, PARIS XIII, France 

 a. Repartition du 35 S dans la corne uterine en fonction de l'etat ovarien. 

 Oryctolagus cuniculus (Lagomorpha) 

 HYLBOM, J. R. Fil.lic. — Zootom. Inst., Univ. of Stockholm, 70A Kad- 

 mansgatan, STOCKHOLM, Zweden 



61 



