Hagct-Har 



a. Analyse experiinentale de la morphogenese embryonnaire de la t?te. 

 Lcptinotarsa (Coleoptera) 

 HAGGIS A. J. A.B., M.S., Ph.D. — Dept of Biol.. Coll. of Arts and Sci.. 

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

 a. Analysis of the determination of the olfactory placode. Ambystoma punc- 

 tata m (Urodela) 

 HAGGQVIST, G. Prof. — Embryol. Dept, Histol. Inst., Karolinska Inst., 

 Solnavagcn 1. STOCKHOLM 60, Sweden 

 a. Experimental polyploidy. (Vertebrata) 

 HAGSTROM. B. E. B.A. — Wenner-Grens Inst, for exp. Biol., Norrtulls- 



gatan 16, STOCKHOLM Va., Sweden 

 HAJRA, B. M.Sc. — Dept of Zool., Presidency Coll.. College St, CAL- 

 CUTTA 12. India 



a. Investigation of morphogenesis by cytochemical means. Amoeba 

 (Protozoa) 



b. Mitotic counts in the lateral extension of the blastoderm. Gallus (Aves) 

 (in collaboration with S. MOOKERJEE) 



HALE. L. J. Ph.D. — Dept of Zool., Univ. of Edinburgh. West Mains Rd, 



EDINBURGH 9. Scotland (U.K.) 

 a. Morphogenetic features in asexual development. (Hydtozoa: Tunicate) 

 HALL. E. K. Ph.D., D.Sc. — Dept of Anat., School of Med., Univ. of 



Louisville, 101 West Chestnut St, LOUISVILLE 2, Ky, U.S.A. 

 HALL, T. S. Ph.D.. Prof. — Dept of Zool., Washington Univ., Lindell and 



Skinker Av., ST LOUIS 5. Mo., U.S.A. 



(no embryological work in progress) 

 HALLIDAY. R. B.Sc. — Agr. Res. Council Unit of Embryol.. Dept of Zool.. 



Univ. of North Wales, BANGOR, Caernarvonshire. N. Wales (U.K.) 

 a. Immunological relations of mother and young. (Mammalia) 

 HAMA. T. M.A., D.Sc, — Biol. Lab.. Keio Univ., Hiyoshi, Kohoku. 



YOKOHAMA. Japan 



a. Morphogenetical and chemical analysis of the organizer. Triturus pyr- 

 rhogaster (Urodela) 



b. Studies on the influence of the pterins and their like upon development 

 in various animals. (Arthropoda, Pisces, Amphibia, etc.) 



c. Developmental and chemical studies of the chromatophores. (Amphibia, 

 Pisces) 



HAMBURGER. V. F.I.I.E., Ph.D.. Prof. — Dept of Zool., Washington 



Univ., Lindell and Skinker Av., ST LOUIS 5. Mo.. U.S.A. 

 a. Neuro-embryology. Gallus domesticus (Aves) 

 HAMILTON. H. L. B.A.. M.S.. Ph.D.. ProL — Dept of Zool. and Ento- 



mol., Div. of Sci., Iowa State Coll., AMES. Iowa, U.S.A. 

 a. Studies on the relation of enzyme systems to morphogenesis. Gallus 



domesticus (Aves) 

 h. Factors influencing the differentiation of melanophores in tissue cultures. 



Gallus domesticus (Aves) 

 c. Marking experiments to ascertain the fate of the incomplete and first 



complete somites. Gallus domesticus (Aves) 

 HAMILTON, W. J. F.I. I.E.. ProL — Anat. Dept. Charing Cross Hosp. 



Med. School. 62 Chandos Place, LONDON W.C. 2. England (U.K.) 

 a. Growth and atresia of the ovarian follicles. Mustela putorius futo L. 



(Carniuora) (in collaboration with R. J. HARRISON) 



42 



