b Biochemical analysis of muscle differentiation, ffana nigromaculata (Anura), Gallus spec. 



(Avcs) (in collaboration with T. HIRABAYASHI) 

 c Cytochemical studies on primary induction. Triturus pyrrhogaster (Urodela) 



• HAYEK. H. Dr.med., Dr.phil.. Prof. — Anat. Inst., Wahringerstr. 13. WIEN 9, Austria 

 HAYNES. J. F. Ph.D. — Dept. of Biol.. Univ. of Notre Dame, NOTRE DAME, Ind. 46556. 



U.S.A. 

 a Growth and form regulation. Hydra viridis (Hydroidea) 

 b Embryology. (Invertebrate) 

 HEARSON, L. L. Ph.D. — Dept. of Biol., Wabash Coll.. CRAWFORDSVILLE, Ind. 



47933, U.S.A. 

 a Investigations of proliferation, DNA synthesis, and nerve fiber patterns in forelimb 



blastemata. Ambystoma mcxicanum (Urodela) 

 h Analysis of blastemal proliferation patterns following amlnopterin administration. Am- 

 bystoma mexicanum (Urodela) 

 c Cytochemistry of dedifferentiation and redifferentiation in denervated limbs. Ambystoma 



maculatum, A. opacum (Urodela) 

 d Investigation of proliferation patterns in aneurogenic forelimb blastemata. Ambystoma 



maculatum, A. opacum (Urodela) 

 HEATH, H. D. Ph.D., Prof. — Dept. of Biol. Sci., Cahfornia State Coll., HAYWARD, 



Calif. 94542, U.S.A. 

 a Starvation and temperature effects on larval growth rates. Taricha torosa, Ambystoma 



tigrinum (Urodela) 

 b Control of nematocyst distribution and tentacle number. Hydra littoralis. Chlorohydra 



viridissima (Hydroidea) 

 HEAYSMAN, Mrs. J. E. M. WAKELING Ph.D. — Dept. of Zool. and Comp. Anat.. Univ. 



Coll. London, Gower St., LONDON W.C.I, England 

 a Study of cell relations in tissue culture. Gallus gallus (Aves). Mus muscttlus (Rodentia) 



(in collaboration with M. ABERCROMBIE) 

 HEBARD. Miss C. N. A.B. — Dept. of Biol., Grad. School of Arts and Sci.; Lab. of Histol. 



and Embryol., School of Dental Med., Univ. of Pennsylvania, PHILADELPHIA, Pa. 



19104, U.S.A. 

 a Structure of cortical cytoplasm before and after fertilization and in early cleavage. Xenopus 



taevis (Anura) 

 HEGGESTAD, C. B. M.D., Ph.D.. Prof. — Dept. of Anat., School of Med., Univ. of Min- 

 nesota, MINNEAPOLIS, Minn. 55455, U.S.A. 

 a Morphological and physiological effects of maternal endocrine deficiency: experimental 



diabetes mellitus. Rattus norvegicus (Rodentia) 



• HEIM, W. G. Ph.D., Prof. — Dept. of Biol.. Colorado Coll.. COLORADO SPRINGS. 



Colo. 80903, U.S.A. 

 a Serum proteins during ontogeny. Gallus domesticus (Aves), Mus rattus (Rodentia) 

 h Alpha-2 macroglobulin during development, regeneration and various physiological states. 



Mus rattus (Rodentia) 

 c Localization of developmental control factors in the embryonic cortex. Rana pipiens 



(Anura) 

 HEIZMANN. P. Ing. Chim. — Section de Biol, generale et appliquee. Fac. des Sci., Univ. 



de Lyon, 43, Bd. du 11 Novembre 1918, 69-VILLEURBANNE, France 

 a Metabolisme des acides nucleiques. Euglena gracilis (Flagellata) 

 HELFENBEIN, L. L. B.Sc. — Dept. of Biol., Kharkov State Univ., Dzerjinsky Square 4, 



KHARKOV, U.S.S.R. 

 a Investigations on the history of embryology, ('particularly Invertebrate) 

 HEMMINGS, W. A. D.Sc — A.R.C. Unit of Embryol., Dept. of Zool., Univ. Coll. of 



North Wales, BANGOR. Caernarvonshire, Wales, U.K. 

 a Immunological relations of mother and fetus. (Mammalia) 

 HEMPEL, G. Eh-., Prof. — Inst, fiir Meereskunde. Universitat Kiel, Hohenbergstr. 2, KIEL, 



Deutsche Bundesrepublik 

 HENDELBERG, J. Fil.lic. — Zool. Inst., Univ. of Uppsala, Villavagen 9, UPPSALA, Sweden 

 a Spermiogenesis. (Plathelminthes) 

 HENDRICKSON, R. J. Ph.D. — Dept. of Biol., Yale Univ., NEW HAVEN, Conn. 06520, 



U.S.A. 

 a Analysis of embryonic lethality associated with pseudoalleles of the dtimpy locus. Dro- 



sophila melanogaster (Diptera) 

 HENDRICKX, A. G. Ph.D. — Div. of Biol. Growth and Development, Southwest Foun- 

 dation for Research and Education, P.O.Box 2296, SAN ANTONIO, Tex. 78206, U.S.A. 

 a Descriptive morphology of the embryo (fertilization through fourth month). Papio spec. 



(Primates) 

 b Determination of ovulation time. Papio spec. (Primates) 

 c Thalidomide induced anomalies. Papio spec. (Primates) 

 HENLEY, Miss C. Ph.D. — Dept. of Zool., Univ. of North Carolina, CHAPEL HILL, N.C. 



27515, U.S.A. 

 HENNEN, Miss S. Ph.D. — Dept. of Zool., Indiana Univ., BLOOMINGTON, Ind., U.S.A. 



67 



