Hamburgcr-Har 



a. Studies on the biochemistry and physiology of synchicnized cell systems. 

 Tetrahymcna pyriformis (Holotricha. Ciliata) (in collaboration with P. 

 PLESNER and E. ZEUTHEN) 

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

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

 a. Neuro-embryology. Gallus domesticus (Aves) 

 HAMILTON. H. L. B.A., M.S., Ph.D.. M.I. I.E., — Dept of Zool. and En- 

 tomol., 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) 

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

 Med. School, 62 Chandos Place, LONDON W.C. 2, England 



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

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



b. Placentation and changes in reproductive tract, (Cervidae) (in collabo- 

 ration with R. J. HARRISON) 



c. The development and structure of the placenta. Homo. (Primates) (in 

 collaboration with J. D. BOYD, Cambridge) 



HAMMOND, W. S. Ph.D.. Prof. — Dept of Anat., School of Med., State 

 Univ. of New York, 766 Irving Ave. SYRACUSE 10. N.Y., U.S.A. 



a. Development of the autonomic nervous system. Gallus domesticus 

 (Aves) (in collaboration with C. L YNTEMA) 



b. Development of the visceral skeleton. Gallus domesticus (Aves) (in col- 

 laboration with C. L. YNTEMA) 



c. Origin of tongue musculature. Gallus domesticus (Aves) 



HAMPfi, A. Lie. es Sci. — Lab. d'Embryol. exper. du Coll. de France, et 

 Lab. d'Embryol. et de Teratol. exper, du C.N.R.S.. 11 Place Marcelin 

 Berthelot, PARIS Ve, France 



— Lab. de Zool. et dEmbryol. exper., Inst, de Zool. et de Biol, gener., 

 12 Rue de I'Universite, STRASBOURG. France 

 a. Etude de la regulation des ebauches des membres. Gallus gallus (Aves) 

 h. Etude de la regulation du bourgeon de membre. Anas spec. (Aves) 

 c. La differenciation sexuelle, par les methodes de greffes, de castration, 

 d'injections d'hormones et d'explantations. Differenciation normale et 

 inversion sexuelle des gonades, des voies genitales et des caracteres soma- 

 tiques precoces. Gallus spec, and Anas spec. (Aves) (en collaboration 

 avec Et. C. WOLFF, Mrs D. SCHEIB— PFLEGER, Miss B. SALZ- 

 GEBER et G. STRUDEL) 

 HANAOKA, K. I. D.Sc, Prof. — Dept of Biol.. Fac. of Lib. Arts and Sci.. 

 Yamagata Univ., Koshirakawa-machi, YAMAGATA, Japan 



a. Neurosecretory hormones in relation to reproductive cycle. Potamon 

 dehaani (Decapoda, Crustacea) 



b. Experimental studies of sex differentiation. Rana temporaria. Rhacopho- 

 rus schlegelii (Anura), Hynobius lichenatus, H. nigrescens, Triturus 

 pyrrhogaster (Urodela) 



HANSON, E. D. A.B.. Ph.D. — Osborn Zool. Lab., Yale Univ.. NEW 

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

 a. Fate of UV damaged feeding organelles during fission and autogamy. 

 Paramecium spec. (Holotricha. Ciliophora) 



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