a. Transplantation of tumor (Lucke renal adenocarcinoma) nuclei into enu- 

 cleated eggs. Rana pipiens (Anura) (in collaboration with Th. J. KING, 

 Philadelphia) 



b. Intraspecific nuclear transplantation. Rana pipiens (kandiyohi dominant 

 mutant) (Anura) 



McLAREN, Miss A. M.A., D.Phil. — Inst, of Animal Genet., Univ. Dept. 

 of Genet., Kings Buildings, West Mains Road, EDINBURGH 9, Scot- 

 land 



a. Induction of super-fecundity by hormone treatment. Mus musculus (Ro- 

 de ntia) 



b. Intervarietal grafting. Solanum spec. (Solanaceae) 



c. Influence of early embryonic environment upon later development, inves- 

 tigated by i n vitro cultivation of early embryos. Mus musculus (Ro- 

 dentia) 



d. Influence of ageing on fecundity, in normal and unilaterally ovariecto- 

 mized animals. Mus musculus (Rodentia) 



McMURRAY, Mrs. V. M. A.B., M.S., Ph.D. — Div. of Anat, Med. Units, 

 Fac. of Biol. Sci., Univ. of Tennessee, MEMPHIS 3, Tenn., U.S.A. 

 a. Development of the optic tectum. Rana pipiens (Anura) 



McNUTT, C. W. A.B., M.S., Ph.D. — Dept. of Anat., Med. Branch, Univ. 

 of Texas, GALVESTON, Tex., U.S.A. 



a. Analysis of morphological effects of the short ear gene. Mus musculus 

 (Rodentia) 



b. A study of the dwarf gene in association with other genes. Mus musculus 

 (Rodentia) 



MECKLENBURG, C. L. F. C von Fil.mag. — Embryol. Dept., Zool. Inst., 



Univ. of Lund, LUND, Sweden 

 MEDAWAR, P. B. M.A., D.Phil., F.R.S., Prof. — Dept. of Zool. and 



Comp. Anat., Univ. Coll. of London, Gower St., LONDON W.C. 1, 



England 



MELLINGER, J. — Lab. de Zool. et d'Embryol. exper., Inst, de Zool. et de 

 Biol, gener., 12 Rue de l'Universite, STRASBOURG, France 



a. Genese, differenciation et role des sacs vasculairs, etude experimentale. 

 (Pisces) 



b. Genese, differenciation et role de la vascularisation hypophysaire. 

 (Selachii) 



MELUCCI, N. — Inst, de Biol., Fac. Filosofia, Univ. de Minas Gerais, Caixa 



Postal 253, BELO HORIZONTE, M.G., Brazil 

 a. Cytochemical (DNA, RNA and proteins) and cytometric studies on 



nuclei and nucleoli during the formation of corneal denticles of tadpoles. 



(Anura) (in collaboration with W. MONTEIRO and G. SCHREIBER) 

 MENDONgA, H. Prof. — Cadeira de Histol. e Embriol., Fac. de Med., 



Univ. do Recife, Caixa Postal N. 616, RECIFE, Brazil 

 MENKES, B. Dr.med., Prof . — Acad. Republ. Populare Romine, Baza de 



cercetari stiintifice Timisoara, Bui. Mihai Viteazul 24, TIMI§OARA, 



Rumania 



a. Embryonale Heterotransplantationen. Melanogenese. Gallus domesticus 

 (Aves) 



b. Transplantation von malignen Tumoren in Embryonen. Gallus domes- 

 ticus (Aves) 



91 



