HANSEN. A. M. Ph.D.. Prof. — Dept. of Biol., Snow Coll., EPHRAIM, Utah 84627, U.S.A. 



(no embryological work in progress) 

 HANSEN-DELKESKAMP. Mrs. E. Dr. — Zool. Inst, der Univ.. Physiol. Lehr.stuhl, Ber- 

 liner Str., HEIDELBERG, Deutsche Bundesrepublik 



a Metabolism of eggs and embryos. Gryllus domesticiis (Orthoptera) 



HANSEN, P. Dr. — Max Planck Inst, fur Biol., Abt. Beermann, Spemannstrasse 34, TU- 

 BINGEN, Deutsche Bundesrepublik 



a Cell differentiation in the haemopoietic system. 



HANSON, E. D. Ph.D., Prof. — Shanklin Lab. of Biol.. Wesleyan Univ., MIDDLETOWN, 

 Conn. 06457, U.S.A. 



a Developmental genetics of oral structures (techniques: UV microbeam. nucleic acid anti- 

 metabolites). Paramecium aiirclia. P. trichhim (Ciliata) 



HARA. K. Ph.D. — Hubrecht Lab. (Internat. Embryol. Inst.). Uppsalalaan 1. Universiteits- 

 centrum „De Uithof, UTRECHT. Netherlands 



a Neural induction: medio^lateral distribution of the inductive capacities in the mesoderm, 

 as studied by intracoelomic grafting. Gallus domesticus (Aves) 



b Temporal aspects in the process of neural induction by the young head process. Gallus 

 domesticus (Aves) 



HARDMAN, G. — Histol. Dept.. Fac. of Med., Univ. of Liverpool, LIVERPOOL, Lanca- 

 shire, England 



a Histochemical and morphological differentiation of intestinal epithelium in vitro and 

 in the normal embryo. 



HARKMARK, W. Dr.med., Prof. — Anat. Inst., Univ. of Bergen, BERGEN, Aarstadvollen. 

 Norway 



HARPER, M. J. K. Ph.D. — Worcester Found, for Exper. Biol., 222 Maple Ave., SHREWS- 

 BURY, Mass. 01545. U.S.A. 



a Ovum transport through the reproductive tract. Oryctolagus cuniculus (Lagomorpha), 

 Rattus rattus (Rodentia) 



b Ovum development and implantation. Mesocricetus aurafus, Rattus rattus (Rodentia), 

 Oryctolagus cuniculus (Lagomorpha) 



c Effects of chemical compounds on pregnancy. Oryctolagus cuniculus (Lagomorpha), Rat' 

 tus rattus, Mus musculus, Mesocricetus auratus (Rodentia) 



HARREBOMfiE, Mrs. A. E. Med.drs. — Div. of exper. Morphol., Dept. of Anat. and 

 Embryol., Univ. of Amsterdam, Mauritskade 61, AMSTERDAM O., Netherlands 



a Regeneration blastemata induced in heterotopic positions and their development. Ambysto- 

 ma mexicanum (Urodela) (in collaboration with H. A. L. TRAMPUSCH) 



b Differentiation and de-differentiation during regeneration. Ambystoma mexicanum (Uro- 

 dela) (in collaboration with H. A. L. TRAMPUSCH) 



HARRIS, J. W. S. Ph.D. — Dept. of Anat.. London Hosp. Med. Coll.. Turner St., LONDON 

 E.l, England 



a Morphogenesis of secondary palate. Rattus rattus, Mus musculus (Rodentia), Homo sapiens 

 (Primates) 



h Morphology of uteroplacental vasculature. Homo sapiens (Primates) 



HARRIS, M. Ph.D., Prof. — Dept. of Zool., Univ. of California, BERKELEY. Calif. 94720, 

 U.S.A. 



a Tissue culture: protein growth factors; evolution of chromosome patterns; drug resistance. 

 Sus domestica (Artiodactyla) 



b Thermotolerance of kidney in vitro. Sus domestica (Artiodactyla) 



HARRISON, J. R. Ph.D., Prof. — Dept. of Biol., Washington and Jefferson Coll.. WASH- 

 INGTON, Pa. 15301, U.S.A. 



a I n v i t r o studies on the growth and differentiation of the retinal pigment in the embry- 

 onic eye: analysis of developmental factors contained in the yolk-albumen of the egg. 

 Gallus domesticus (Aves) 



h Uptake of glucose by early primitive streak to early somite embryos studied by using 

 isotope techniques. Gallus domesticus (Aves) 



HARRISON, R. G. M.A., D.M. — Dept. of Anat., Univ. of Liverpool. LIVERPOOL 3. 

 England 



a Factors influencing the process of spermatogenesis. (Mammalia) 



HARRISON, R. J. D.Sc. M.D. — Anat. Dept., London Hosp. Med. Coll.. Turner St.. LON- 

 DON E.l. England 



a Fine structure of the placenta. (Mammalia) 



h Structure of ovary in delayed implantation. (Carnivora) 



c Placentation and changes in reproductive tract. (Cervidae; Phocidae) 



HARTE, Miss C. Dr. Prof. — Inst, fiir Entw.physiol., Univ. zu Koln, Gyrhofstr. 17. KOLN- 

 Lindenthal, Deutsche Bundesrepublik 



a Influence of genes on pollentube growth (certation) and embryosac development. Oeno- 

 thera spec. (Onagraceae), Antirrhinum spec. (Scophulariaceae) 



h Gene action in the development of leaves. Antirrhinum spec. (Scrophulariaceae) 



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