Hend 41 Herrm 



HENDERSON, Miss M. B.Sc. — Dept of Zool., Univ. Coll. of N. Wales, 



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

 a. Immunological relations of mother and young. Oryctolagus cuniculus 



(Rodentia) 

 HENKE, K. Dr Phil.. Prof. — Zool. Inst, der Univ. Gottingen, Mathem.- 



Naturw, Fak., Nikolausbergerweg 75, GOTTINGEN, Deutschland. 



(no data received over this year) 

 HENLEY, Miss C. M.A., Ph.D. — Dept of Zool., Univ. of North Carolina, 



CHAPEL HILL, N.C., U.S.A. 



a. The effects of radioactive phosphorus on mitosis in larval epithehal 

 cells. Amblystoma punctatum (Urodela) (in collaboration with D. P. 

 COSTELLO and D. E. KENT) 



b. Continuation of an investigation on the effects of low temperature on 

 mitosis in fertihzed eggs. Chaetoptems pergamentaceus (Pohjchaeta) 

 (in collaboration with D. P. COSTELLO and D. E. KENT) 



HERLANT— MEEWIS, Mme H. Dr. Zool. — Lab. de Zool., Fac. des Sci.. 

 Inst, de Zool. Torley-Rousseau. Univ. libre de Bruxelles, 50 Av. F. D. 

 Roosevelt, BRUXELLES. Belgique. 



a. Etude des lois de la scissiparite. (Aeolosomatidae, Oligochaeta) 



b. Etude histochimique et histophysiologique de la scissiparite. Influence 

 des facteurs externes et internes. Action des substances de croissance: 

 vitamines, acides amines. (Aeolosomatidae, Oligochaeta) 



c. L'enkystement. Etude histochimique et histophysiologique du phenomenc 

 d'enkystement observe au Canada. (Aeolosomatidae, Oligochaeta) 



d. Etude des elements regenerateurs lors de la scissiparite et de la regene- 

 ration experimentale. (Oligochaeta) 



e. La regeneration experimentale du germen. Formation du germen a partir 

 du soma, lors de la regeneration. Lumbricillus lineatus (Enchytraeidae, 

 Oligochaeta) 



f. La gemmulation. Les gemmules surtout caracteristiques des eponges d'eau 

 douce, sont etudiees ici chez une forme maritime. Suberites domuncula 

 (Porifera) 



g. Blastogenese. Facteurs externes la conditionnant. Etudes histologiques 

 de la scissiparite. Aeolosoma (Oligochaeta) 



HERNI, W. G. — Dept of Zool., Univ. of Cahfornia, LOS ANGELES 24. 



Cal., U.S.A. 

 a. Electrophoresis of serum of developing embryo. Gallus domesticus 



(Aves) 

 HERRICK. Ch. }. Dr, Prof. (Emer.) — Univ. of Chicago, 236 Morning 



Side Drive. GRAND RAPIDS 6, Mich., U.S.A. 



(no embryological work in progress) 

 HERRMANN, H. Dr, Prof. — Univ. of Colorado, Med. Center, Dept of 



Pediatrics. 4200 east Ninth Ave. DENVER 7. Col.. U.S.A. 



a. Chemistry of muscle differentiation, determination of actin and myosin 

 and phosphate fractions in muscle of embryos after the 7th day of 

 development (concluded). Callus (Aves) (in collaboration with B. J. 

 NEUKOM and M. J. SCHNEIDER) 



b. Determination and fractionation of nucleoproteins and determination of 

 enzvmes in somites from the 2nd to the 5th day of incubation and in 

 differentiating muscle from the 7th day of incubation to hatching. Gallus 

 (Aves) (in collaboration with B. J. NEUKOM and M. J. SCHNEIDER) 



