a. Development and morphology of the autonomic nervous system. (Lower 

 Vertebrata) 

 JOHNEN, Miss A. G. Dr.Phil. — Zool. Inst, der Univ. Kdln, Kerpenerstr. 

 13. K6LN-LINDENTHAL. Deutschland 



a. Die Wirkungsspezifitat abnormer Induktoren in der Entwicklung. 

 (Amphibia) 



b. Die Bedeutung des Zeitfaktors beim Induktionsvorgang. Ambystoma 

 spec, T riturus spec. (Urodela) 



JOHNSON. D. C. B.S.. M.S., Ph.D. — Dept. of Zool., State Univ. of Iowa, 

 P.O. Box 585, IOWA CITY, Iowa, U.S.A. 

 a. Physiology of reproduction: hypophyseal-gonadal interrelationships by 

 the use of parabiosis. 



JOHNSON, E. M. — Dept. of Anat., Coll. of Med., Univ. of Florida, GAI- 

 NESVILLE, Florida, U.S.A. 

 a. Teratology. 



JOHNSON, G. Lic.es Sci. — Lab. de Zool., Fac. des Sci., POITIERS, Vien- 

 ne, France 



JONES, B. M. D.Sc. — Dept of Zool., Univ. of Edinburgh, West Mains 

 Road, EDINBURGH 9, Scotland 



a. Surface chemical properties of extra-embryonic fluid. Locusta migtatoria 

 (Otthopteta), Gallus gallus (Aves) 



b. I n v i t r o cultivation of embryonic tissues. (Insecta) 



JONES, O. P. Ph.D., M.D. — Dept. of Anat., Univ. of Buffalo Med. School, 

 3435 Main St., BUFFALO 14, N.Y., U.S.A. 



a. Embryonic blood cells in the yolk sac. Rattus spec. (Rodentia) 



b. Electron microscopy of hepatic hematopoiesis. Rattus spec, Homo sapiens 

 (Mammalia) 



JONES, W. E. B.Sc, Ph.D. — Marine Biol. Station, Univ. Coll. of North 



Wales, MENAI BRIDGE, Anglesey, Wales 

 a. Spore division and early development of thallus. (Rhodophyceae; 



Gigartinales) 

 JOST, A. D. Dr.Sc, M.D.(hon.c), M.I. I.E., Prof. — Lab. de Physiol, comp., 



Fac. des Sci., Univ. de Paris, 12 Rue Cuvier, PARIS Ve, France 



a. Endocrinologie foetale. Rattus noruegicus (Rodentia). Oryctolagus cuni- 

 culus (Lagomorpha) 



b. Differenciation sexuelle. Rattus noruegicus (Rodentia), Oryctolagus 

 cuniculus (Lagomorpha) 



c Anomalies hereditaires ou experimentales des extremites (acroblapsie). 



Mus musculus, Rattus noruegicus (Rodentia), Oryctolagus cuniculus 



(Lagomorpha) 

 JOUBERT, D. M. M.Sc(Agric), Ph.D.— Dept. of Animal Husbandry, 



Univ. of Pretoria, PRETORIA. South Africa 



(no embryological work in progress) 

 JURA, Cz. D.Sc. — Zool. Dept. of the Jagiellonian Univ., St. Anne 6, 



KRAKOW, Poland 



a. Experimental studies on development. Melasoma populi (Coleoptera) 



b. Histochemical studies on development. Melasoma populi (Coleoptera) 

 (in collaboration with Miss A. KRZYSTOFOWICZ and Miss 

 B. W^GLARSKA) 



JURAND, A. Dr.Biol. — Biol, and Embryol. Inst., Med. Acad., KRAKOW, 

 Poland 



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