a. Development of the nervous system. Gallus gallus (Aues) 



b. Respiratory picture in the egg. (Anura) 



c. Embryology. (Gastropoda) 



HOAR, R. M. Ph.D. — Dept. of Anat., Coll. of Med., Univ. of Cincinnati, 



Eden Avenue, CINCINNATI 19, Ohio, U.S.A. 

 a. Study of the teratogenic effects of the reproductive endocrines with 



particular reference to the adrenocorticoids. Cavia cobaya (Rodentia) 

 HOBBS, M. J. B.A. — Inst, of Animal Genet., Univ. Dept. of Genet, King's 



Buildings, West Mains Road, EDINBURGH 9, Scotland 

 a. Differentiation in colonial forms. Pleodorina spp. (Votvocaceae, Algae) 

 HOEFSMIT, Miss E. C. M. Med.Drs. — Anat.-Embryol. Lab., Fac. of Med., 



State Univ. of Leiden, Wassenaarseweg, Boerhaavekwartier, LEIDEN, 



Netherlands 

 a. Development of ductus arteriosus. Mus norvegicus albinus (Rodentia) 

 HOFMAN, Miss L. M.Sc. — Inst, of Biol., Fac. of Med., ZAGREB, Salata, 



Yugoslavia 

 a. Relative growth of organs in the embryo. Rattus norvegicus albinus (Ro- 

 dentia) (in collaboration with N. SKREB) 

 HOLLANDER, W. F. B.A., M.S., Ph.D. — Dept. of Genetics, Iowa State 



Univ., AMES, Iowa, U.S.A. 

 HOLM, K. A. Fil.Dr. — Zool. Inst., Univ. of Uppsala, UPPSALA, Sweden 

 a. Experimental investigation of the embryo (determination, prospective 



significance of embryonic areas). (Araneae, Arachnoidea) 

 HOLST CHRISTENSEN, P. J. Dr.Phil. — Inst, for Aim. Zool., Universi- 



tetsparken 3, COPENHAGEN 0, Denmark 

 HOLTER, H. Ph.D., M.I.I.E. — Dept. of Physiol., Carlsberg Lab., 10 Gl. 



Carlsbergvej, COPENHAGEN, Valby, Denmark 

 HOLTFRETER, J. K. F. Ph.D., F.I.I.E., Prof. — Dept. of Biol.. Coll. of Arts 



and Sci., Univ. of Rochester, ROCHESTER 27, N.Y., U.S.A. 



a. Embryological-cytological studies on muscle development. (Vertebrata) 



b. Comparative studies on the locomotion and streaming of embryonic and 

 other amoeboid cells. (Vertebrata) 



HOLTZER, H. Ph.D., M.I.I.E., Prof. — Dept. of Anat.. School of Med.. 

 Univ. of Pennsylvania, PHILADELPHIA 4, Pa., U.S.A. 



a. Myogenesis. (Vertebrata) 



b. Chondrogenesis. (Vertebrata) 



HOOKER, D. Ph.D., Sc.D.(Hon.), M.I.I.E., Prof.(Emer.) — 130 Everit St., 

 NEW HAVEN 11, Conn., U.S.A. 



— Dept. of Anat.. Yale Univ. School of Med., NEW HAVEN 11, Conn., 

 U.S.A. 



a. Study of the physiological responses of fetuses. Homo sapiens (Primates) 

 (in collaboration with Miss T. HUMPHREY, Birmingham, Ala.) 



b. Study of the reactivity of the fetus to exteroceptive stimulation. Homo 

 sapiens (Primates) (in collaboration with Miss T. HUMPHREY, Bir- 

 mingham, Ala.) 



HORI, R. M.Sc, D.Sc. — Biol. Inst., Fac. of Lib. Arts, Toyama Univ., Hasu- 



machi 22, TOYAMA, Japan 

 HORIKAWA, M. D.Sc. — Dept. of Exp. Radiol., Fac. of Med., Kyoto Univ., 



KYOTO, Japan 

 a. Developmental-genetic studies on various primary cell types derived from 



the embryo in cell culture. Mus musculus (Rodentia) 



73 



