Brien 17 Burns 



a. Etudes histologiques du bourgeonnement. Etudes histologiques de la 

 gametogenese. Experiences par marques colorees de la regeneration et 

 de la croissance. Facteurs cxterieurs conditionnant le bourgeonnement 

 et la sexualite. Cladonema, Clava. Tubularia, Hydra (Hydroidea, 

 Hydrozoa) 



h. Blastogenese. spermatogenese et ovogenese. Hydra viridis. Hydra at- 

 tenuata (Hydroidea, Hydrozoa) 

 BRIGGS. R. W. Ph.D. — Lankenau Hospital Research Inst, and Inst, 

 for Cancer Research. Burholme Ave. For Chase, PHILADELPHIA 11. 

 Pa.. U.S.A. 



a. Experimental study of development of eggs lacking "functional" chromo- 

 .somes. Rana (Anura) (in collaboration with T. J. KING) 



b. Study of the reaction between the living sperm nucleus and toluidine 

 blue. Rana (Anura) 



c. Development of gynogenetic diploids. Rana (Anura) 



BROERS, C. J. Biol, drs — Anat.-Embryol. Lab. der Rijks Univ., Janskerk- 



hof 3, UTRECHT, Holland. 



(no data received over this year) 

 BR0NDSTED, H. V. Dr Phil., Prof. — Inst, for Aim. Zool., Universitets- 



parken 3, COPENHAGEN 0, Denmark. 



(no data received over this year) 

 BRUNER, Miss J. A. Ph.D. — Zool. Dept, State Univ. of Iowa, IOWA 



CITY, Iowa, U.S.A. 



a. Gonadotropic hormones in mother and fetus at various stages of 

 pregnancy. Homo (Primates) 



b. Hormones and sex differentiation. Ambystoma (Urodela) 



c. Respiratory metabolism of eggs. Rana pipiens (Anura) 



BUCHER, N. — Zool.-vergl. Anat. Inst., Naturw. Fak., Univ. Zurich, 

 Kiinstlergasse 16, ZURICH 6, Schweiz. 

 a. Influence of radiation and chemicals on ovaries. Drosophila melanogaster 

 (Insecta) 

 BUCHTOWNA, Miss A. M.Sc. — ZaWad Anat. Porownawczej, Inst. Zool. 

 Uniw., ul. Sienkiewicza 21, WROCLAW, Poland, 

 a. Development of ribs. Salamandra (Urodela) 

 BUNO. W. B.S.. Ph.D., Prof. — Dept de Histol. y Embriol., Fac. de Med., 

 MONTEVIDEO, Uruguay, S. America, 

 (no data received over this year) 

 BURDON— JONES, C. B.Sc. — Dept of Zool.. Univ. Coll. of N. Wales, 

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

 a. Embryology of British forms. ( Enter opneusta) 

 BURGERS, A. C. J. — Zool. Lab. der Rijks Univ., Janskerkhof 3. 

 UTRECHT, Holland, 

 a. Analysis of lithium action. Limnaea stagnalis (Gastropoda) (in col- 

 laboration with W. G. BRAAMS. P. F. ELBERS, W. L. M. GEILEN- 

 KIRCHEN, J. ISINGS, Miss T. C. M. KOEVOETS, Chr. P. RAVEN. 

 G. SCHOLTEN and M. VROMAN) 

 BURNS, R. K. A.B., Ph.D., Hon. Prof. — Dept of Embryol.. Carnegie 

 Inst, of Washington, Wolfe and Madison Strs, BALTIMORE 5; Dept 

 of Biol.. The Johns Hopkins University. BALTIMORE 18. Md, U.S.A. 

 a. The experimental control of sex differentiation in the embryo by means 

 of hormones. Didelphys virginiana (Marsupialia, Mammalia) 



