EHN. J. A. Fil.dr. — Inst, of ZoophysioL, Univ. of Uppsala, UPPSALA. 

 Sweden 



a. Effects of sulphydryl-blocking and other substances on development of 

 the embryo. Agelena labyrinthica (Arachnoidea) 



b. Animalization and vegetalization of the embryo by means of chemical 

 agents. Agelena labyrinthica (Arachnoidea) 



EIDMANN. H. H. Dr. — Dept. of Forest Entomol.. Roy. Coll. of Forestry. 

 STOCKHOLM 50. Sweden 

 a. Physiology of postembryonic development and diapause; coldhardiness 

 of developmental stages. Coleophora laricella (Lepidoptera) , Hylobius 

 ahietis (Coteoptera) 

 h. Physiology of embryonic development. Carausius morosiis (Orfhoptera) 

 EISENBERG.^ Miss S. B.Sc, M.S.. Ph.D. — Centro de Investigacion y 

 Estudios Avanzados. Inst. Politecnico Nacional, Apartado Postal 14740, 

 Mexico 14, D.F.. Mexico 



a. DNA synthesis in the regenerating lens. (Urodela) 



b. The cell cycle in the lens regenerating system (autoradiography). 

 Triturus viridescens (Urodela) 



c. The mitochondrial system in the developing embryo (differential cen- 

 trifugation. polarography). Xenopits laevis (Anura). Ambysfoma mexi- 

 canum (Urodela) 



EISLER, R. B.A.. M.S.. Ph.D.. — Sandv Hook Marine Lab . U.S. Fish and 

 Wildlife Service, Box 428. HIGHLANDS. N.J., U.S.A. 

 a. Artificial propagation. Pseudopleuronecfes americanus (Pleuronectidae, 

 Teleostei) . Tautoga onitis (Labridae. Teleostei) 

 ELBERS. P. F. Ph.D. — Centrum voor Submicroscopisch Onderzoek van 

 Biologische Objecten, Janskerkhof 3. UTRECHT. Netherlands 

 a. Experimental morphology of cell membrane and cytoplasmic structures 

 in early developmental stages. Limnaea stagnalis (Pulmonata, Gastro- 

 poda) 

 EL-EISHI. H. I. S. M.B., B.Ch. — Dent, of Anat. and Em.bryol., Univ. Coll. 

 London, Gower St.. LONDON W.C.I . England 

 a. A chemical study of the development of myelin in the spinal cord. Gal- 

 lus domesticus (Aves). Cavia porcelhts (Rodenfia) 

 ELGAMMAL, A. E. B.Sc. — Dept. of Zool., Ain Shams Univ., Fac. of Sci.. 

 Abassia, CAIRO. Egypt 

 a. On the effect of thyroxine and iodine on metamorphosis. Bufo regulads 

 (Anura) 

 ELIASSON (KLEIN). Mrs. E. Fil.lic. — Wenner-Gren's Inst, for exper. 

 Biol., Norrtullsgatan 16, STOCKHOLM Va., Sweden 



a. Enzyme induction and repression, particularly arginasc. Callus spec. 

 (Aves) 



b. Induction and repression of enzyme synthesis in cells in tissue culture. 

 (Mammalia) 



ELLISON, Mrs. K. E. B.S. — Dept. of Zool., Univ. of Connecticut. 

 STORRS. Conn.. U.S.A. 



EL MALKH, N, M. B.Sc. — Dept. of Zool., Alexandria Univ., Moharram 

 Bey, ALEXANDRIA, Egypt 

 a. Studies on hind limb regeneration. Bu[o regularis (Anura) (in colla- 

 boration with M. I. MICHAEL) 



59 



