a. Photographical series of normal development. Gallus domesticus (Aves) 



b. Photographical series of organ development. Domestic animals (Mam- 

 malia) 



c. Cholinesterase determinations in embryos. Domestic animals (Mam- 

 malia) 



HOFF-JoRGENSEN, E. Dr Phil. — Inst, of Biochem., Fac. of Med., Univ. 



of Copenhagen. Juliane Mariesvej 30, COPENHAGEN ^, Denmark 

 HOGE, A. — Instituto Butantan, SAO PAULO. Brasil 



a. Intersexuality. Bothrops insularis Amand (Ophilia) (in collaboration 



with H. BELLVOMINI and G. SCHREIBER, Belo Horizonte) 

 HOGUE. Miss M. J. A.B., Ph.D.. Assoc. Prof. (Em.) — Dept of Anat, 



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

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



Coll., AMES, Iowa. U.S.A. 



a. Genetic mutants — polydactylism, lethal types. Mus musculus (Rodentia) 



b. X-ray induced dominant lethal effects. Mas musculus (Rodentia) 



c. X-ray induced chromosome-translocation effects. Mus musculus (Roden- 

 tia) 



d. Genetic mutants. Columba livia (Aves) 



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

 a. Experimental investigation of the embryo (determination, prospective 

 significance of embryonic areas). (Araneae. Arachnoidea) 



fHOLMDAHL, D. E. Med.Dr. F.I.I.E.. Prof. (Emer.) — Anat. Inst., Upp- 

 sala Univ., UPPSALA. Sweden 

 (deceased) 



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

 sitetsparken 3, COPENHAGEN P. Denmark 



a. Continued investigations on embryology. (Insecta) 



b. Studies on larval hair development. (Lepidoptera) 



c. Studies on the development of the lungs. (Mammalia) 



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



Carlsbergvej. COPENHAGEN, Valby. Denmark 



(no embryological work in progress) 

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



Arts and Sci., Univ. of Rochester. ROCHESTER 20. N.Y., U.S.A. 



a. Studies on the diffusibility and toxicity of inductive agents. (Urodela) 



b. Stimuli initiating both neurogenesis and carcinogenesis. (Amphibia) 

 HOLTZER, H. Ph.D. — Dept of Anat., School of Med., Univ. of Penn- 

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



HOLYOKE. E. A. Ph.D. — Dept of Anat.. Coll. of Med.. Univ. of Nebras- 

 ka. OMAHA 5. Nebraska. U.S.A. 



HOOKER. D. Ph.D., Sc.D.(Hon.). M.I.I.E.. Prof. Emer. — 110 Livingston 

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

 — Osborn Zool. Lab., Yale Univ., NEW HAVEN 11. Conn.. U.S.A. 



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



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

 sapiens (Primates) 



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

 (Primates) (in collaboration with Miss T. HUMPHREY) 



HORI, R. M.Sc. — Biol. Inst.. Fac. of Lib. Arts. Toyama Univ., TOYAMA. 

 Japan 



51 



