b Morphology of embryonic development, metamorphosis and asexual reproduction. Distaplia 



unigermis (Polycitoridae, Aplousobranchia, Ascidiacea) 

 c Asexual reproduction. Synoicum spec. (Polyclinidae, Aplousobranchia) , Botrylloidus spec. 



(Botryllidae, Stolidobranchia. Ascidiacea) 

 IVEMARK. B. I. M.D., Prof. — Dept. of Pediatric Pathol., Karolinska Hospital. STOCK- 

 HOLM 60, Sweden 

 a Anatomy and pathology of developing adrenal. Homo sapiens (Primates) 

 b Anatomy and pathology of the placenta (micro-angiography). Homo sapiens (Primates) 

 c Fetal and neonatal immunity as ref elected in the thymus and spleen (immimofluorescence). 



Homo sapiens (Primates) 

 IVERSON, R. M. Ph.D., Prof. — Dept. of Biol.. Univ. of Miami. CORAL GABLES. Fla. 



33124, U.S.A. 

 a Nucleic acids during development. Lytechinus variegatus (Echinoidea) 

 b Development of the mitotic apparatus and protein synthesis in eggs and embryos. 



(Echinoidea) 

 IWASAKI. T. D.Sc — Div. of Biol.. Nat. Inst, of Radiol. Scis, Anagawa 4-9. CHIBA, 



Japan 

 a Effects of ionizing radiations on embryonic development. Artemia salina (Anostraca, 



Crustacea) 

 b Cytological studies on the radiosensitivity of spermatogenesis. Bombyx mori (Lepidoptera) 

 WMAShSSfh, H. D.Sc. — Zool. Lab.. Coll. of Gener. Education, Niigata Univ.. NIIGATA, 



Japan 

 a Embryological study on endocrine correlation. (Amphibia) 

 b Comparative anatomy of genital system. (Amphibia) 

 c Comparative histology of endocrine organs. (Amphibia) 

 IWATA. F. D.Sc. — Zool. Inst.. Fac. of Sci.. Hokkaido Univ., North 8. West 5. SAPPORO, 



Japan 

 a Studies on the comparative embryology with special reference to taxonomic interrelation 



ships. (Nemertea) 

 lYEIRI, Miss S. D.Sc. — Dept. of Biol., Embryol. Inst., Fac. of Sci.. Kyushu Univ.. Hako 



zaki, FUKUOKA, Japan 

 a RNA metabolism of dissociated embryonic cells being affected by inductive agents, 



(Amphibia) 

 b RNA-polymerase of the egg. Artemia salina (Anostraca, Crustacea) 

 JACOB. J. Ph.D. — M.R.C. Epigenet. Res. Group, Inst, of Anim. Genet.. King's Buildings, 



West Mains Rd., EDINBURGH 9. Scotland. U.K. 

 a Ultrastructure and ultrastructural cytochemistry of nucleous in larval salivary gland cells 



Smittia parthenogenetica (Chironomidae, Diptera) 

 b Ultrastructural changes and patterns of RNA and protein synthesis in differentiating cells 



as studied by E.M. autoradiography. Triturus alpestris (Ucodela) 

 c Synthesis and transformations of cellular membranes: nuclear membranes in Hela cells 



endoplasmic reticulum in cement gland cells of embryo. Xenopus laevis (Anura) (in col- 

 laboration with C. H. WADDINGTON and Miss M. M. PERRY) 

 d Nature of involvement of nucleolus in virus induced Lucke tumour cells. I^ana pipiens 



(Anura) 

 JACOBS. W. P. Ph.D. — Dept. of Biol., Princeton Univ., PRINCETON, N.J. 08540. U.S.A. 

 a Experimental developmental morphology, using controlled environment chambers, elec- 

 tronic computer processing of data, and studies of hormonal effects on organ and cell 



differentiation. Caulerpa prolifera (Siphonales, Algae), Coleus blumei (Labiatae), Xan- 



thium pennsylvanicum (Compositae) 

 JACOBSON. A. G. Ph.D., Prof. — Dept. of Zool., The Univ. of Texas, AUSTIN, Tex. 



78712, U.S.A. 

 a Induction and positioning of the nose. lens and ear. Taricha torosa (Urodela) 

 h Factors controlling the segregation of the optic vesicle into pigmented retinal epithelium 



and sensory retina. Taricha torosa (Urodela) 

 c Characterization of the endodermal substance that induces heart development. Taricha 



torosa (Urodela) 

 JACOBSON, D. C.-O. Fil.Dr. — Zool. Inst., Univ. of Uppsala, Villavagen 9, UPPSALA. 



Sweden 

 a Determination of the central nervous system. Ambysfoma spec. (Urodela) 

 h Experimental studies on fiber pattern formation in the medulla oblongata. Ambystoma 



spec. (Urodela) 

 c The mechanism of neurulation. Ambystoma spec. (Urodela) 

 JACOBSON, M. Ph.D. — Dept. of Biol. Sci.. Purdue Univ., LAFAYETTE, Ind. 47907, 



U.S.A. 

 JACOBSSON. A. Fil.mag. — Zool. Inst., Univ. of Gothenburg, 4de LSnggatan 7B, GOTE- 



BORG SV, Sweden 

 a Studies on the ontogenesis of mesencephalic nuclei. Callus domesficus (Aves) 

 JACQUOT, R. L. D.Sc. Prof. — Lab. de Physiol. Animale, Fac. des Scis., B.P.347, REIMS. 



France 



74 



