Hart 39 Hem 



HARTUNG, E. W. Ph.D. (Harvard Univ), Assoc. Prof. — Dept of Zool.. 

 Univ. of Rhode Island, KINGSTON, R.I., U.S.A. 

 a. Factors influencing tumor incidence. A study of the developmental, envi- 

 ronmental and genetic factors operative in the development of so-called 

 ,, melanin tumors". Drosophila melanogaster (Insects) 



HARTWIG, H. Dr Phil. — Zool. Inst, der Univ. Koln. Kerpenerstr. 13, 

 KOLN-LINDENTHAL, Deutschland. 



a. Einfluss von Thyroxin auf fruhe Entwicklungsstadien. (Amphibia) 



b. Osteogene Substanzen, Wirkung von Organfragmenten und -extrakten. 

 HARVEY, Mrs E. BROWNE F.I.I.E., A.B., M.A., Ph.D. — Dept of 



Biol., Princeton Univ.. PRINCETON, N.J., U.S.A. 

 a. Centrifuging eggs, and development of fractions obtained by centrifugal 



force. Parthenogenetic merogony or development without nuclei. (Echi- 



nodermata) 

 h. Monograph, including classified compilation of all experimental work. 



Arabacia punctulata (Echinoidea) 

 HARVEY, E. B. B.S. — Dept of Zool., Univ. of CaUfornia, BERKELEY 4, 



Gal.. U.S.A. 

 a. The effects of high hydrostatic pressure coupled with centrifugation on 



development of eggs. (Invertebrata and Anamnia) 

 HAYASHI, Y. M.A. (Rigakushi) — Biol. Inst.. Fac. Sci., Nagoya Univ., 



Chigusa-Ku. NAGOYA, Japan. 



a. Regional induction through heterogeneous inductors. Triturus pyrrho- 

 gaster (Amphibia) 



b. Biochemical and histological studies of oogenesis. Triturus pyrrhogaster 

 (Amphibia) (in collaboration with S. OS AW A) 



HAYES, E. R. Ph.D., Prof. — Dept of Anat., Ohio State Univ., COLUM- 

 BUS 10, Ohio, U.S.A. (no data received over some years) 

 HEATH, H. D. Ph.D. — Dept of Biol. Sci., Stanford Univ., STANFORD, 



Cal., U.S.A. 

 a. Blastema formation in limb regeneration. (Amphibia) 

 HEAYSMAN, Miss J. E. M. B.Sc, Ph.D. — Dept of Embryol., Univ. Coll. 



London, Gower Str., LONDON W.C. 1, England (U.K.) 

 a. Cinematographic study of cell relations in tissue culture. Gallus domestic 



cus (Aves) (in collaboration with M. ABERCROMBIE) 

 HECKERMAN R. O. M.S. — Univ. of Pittsburgh, PITTSBURGH, Pa, 



U.S.A. 



(no data received on Nov. 1^', 1952) 

 HEILBRUNN. L. V. Ph.D., Prof. —Dept of Zool., Univ. of Pennsylvania, 



PHILADELPHIA 4, Pa. U.S.A. 



(no data received over some years) 

 HEIM, W. G. A.B., M.S. — Dept of Zool., Univ. of Cahfornia. LOS 



ANGELES 24, Cal.. U.S.A. 

 a. Electrophoresis of serum of developing embryo. Gallus domesticus 



(Aves) 

 HEIMANN, H. Dr Med. — Hirnanat. Inst, der Psychiatr. Univ.-khnik, 



Med. Fak., Waldau, BERN, Schweiz. 

 a. Endhirnentwicklung. (Teleostei) 

 HEMMINGS, W. A. B.A. — Dept of Zool., Univ. Coll. of North Wales, 



BANGOR, Caernarvonshire. N. Wales (U.K.) 

 a. Study of the immunological relations of mother and foetus. (Mammalia) 



