Hoa-Hul 



HOADLEY. L. F.I. I.E.. Prof. — Biol. Lab.. Harvard Univ.. Divinity Ave, 



CAMBRIDGE 38. Mass.. U.S.A. 

 HOEK J v. d. M.V. Sc. — Veter. Anat. and Embryol. Inst.. Bekkerstr. 141. 

 UTRECHT. Holland 

 a. Histology and histochemistry of the endometrium during the estrous 

 cycle. Bos taurus (Mammalia) 

 HOESSELS Miss E. L. M. J. M.Sc. — Hubrecht Lab.. Intern. Embryol. 

 Inst.. Janskerkhof 2. UTRECHT. Holland „^^^^„^ 



— Veter. Anat. and Embryol. Inst., Bekkerstraat 141, UTRECHT 

 Holland , , 



a. Inductive capacity and self-differentiation of prechordal plate material 

 as tested by explantation in "sandwiches" of competent ectoderm. Am- 

 hi/stoma mexicanum (Urodela) 

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

 Univ. of Copenhagen, juliane Mariesvej 30, COPENHAGEN 0. 

 Denmark 

 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. 

 a. Study of neurons and glia cells from the different parts of the brain, 

 especially from the cerebellum of human fetuses, newborn babes and 

 adult humans. Homo (Primates) 

 h. The effect of poliomyelitis viruses on brain cells grown in tissue cul- 

 tures. Homo (Primates) 

 HOLM. K. A. Fil.Dr — Zool. Inst.. Upp.sala Univ.. UPPSALA. Sweden 

 a. Experimental investigation of the embryo (determination, prospective 

 significance of embryonic areas). (Araneae, Arachnoidea) 

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

 sitetsparken 3. COPENHAGEN P, Denmark 

 a. Continued investigations on embryology. (Insecta) 

 h. Studies on larval hair development. (Lepidoptera) 

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

 HOLTER. H. Ph. D. — Cytochcm. Dept. Carlsberg Lab.. 8 Gl. Carlsberg- 

 vej. COPENHAGEN Valby, Denmark 



a. Enzyme development in embryos. (Echinodermata) 



b. Cytochemistry. (Protozoa) 



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

 Arts and Sci., Univ. of Rochester. ROCHESTER 3. N.Y., U.S.A. 

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

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

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

 a. Role of spinal cord and notochord in the morphogenesis of the vertebral 



column. (Urodela, Aves and Mammalia) 

 h. Histogenesis of embryonic and mature muscle. (Aves and Mammalia) 



c. Factors influencing the organization of the neural action systems in the 

 CNS. (Urodela and Aves) 



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

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

 a. Effects of radiation on developing embryos. Galliis (Aves) (in colla- 

 boration with J. S. LATTA and A. O. CHAPMAN) 



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