a Ultrastructure of developing retina and correlation with function as indicated by electro- 

 retinography. Rana spec. (Anura), Gallus domesticus (Aves), Rattus domesticus, Citellus 

 spec. (Rodentia) 



b Ultrastructure of ocular structures other than retina and correlation with functional 

 awakening. Rana spec. (Anura), Gallus domesticus (Aves), Rattus norvegicus, Citellus 

 spec. (Rodentia) 



c Ultrastructural aspects of neuro-ophthalmic development; formation of optic nerve, chiasm, 

 lateral geniculate bodies, optic radiations and occipital cortex (where appropriate). Rana 

 spec. (Anura), Gallus domesticus (Aves), Rattus norvegicus, Citellus spec. (Rodentia) 



WEIRICH, G. Dr.rer.nat. — Physiol.-Chem. Inst., Fac. of Med., Phihpps Univ., 355 MAR- 

 BURG/Lahnberge, W.Germany 



a The role of chromosomes in the regulation of developmental processes (elaboration of an 

 in vitro system for polytene chromosomes). Calliphoca erythrocephala, Rhynchosciara 

 angelae (Diptera) 



WEISHEIT (SCHULTZ), Mrs. P. Ph.D., Prof. — Biol. Dept., Univ. of Colorado, Denver 

 Center, 1100 E. Hth St., DENVER, Colo. 80202, U.S.A. 



a Effect of teratological and other deleterious compounds upon the maintenance of preg- 

 nancy with especial reference to cytocheraical and ultrastructural changes in placental cells, 

 Mus norvegicus albinus (Rodentia) 



h A comparative cytochemical study of the autophagic area of the developing yolk sac 

 placental cells. Aplondontia rufa, Erethizon epixanthum (Rodentia) 



WEISS, L. M.D.. Ph.D. — Dept. of Exper. Pathol., Roswell Park Mem. Inst., 666 Elm 

 St., BUFFALO, N.Y. 14203, U.S.A. • 



WEISS P. A. Ph.D., Sc.D., Prof. (Emer.) — Lab. of Developm. Biol., Rockefeller Univ., 

 NEW YORK, N.Y. 10021, U.S.A. • 



(no embryological work in progress) 



WEISS, R. A. B.Sc. — Dept. of Anat. and Embryol., Univ. Coll., Cower St., LONDON 

 W.C.I, England 



a Teratoma cells in vitro. (Mammalia) 



WEISZ, P. B. Ph.D. — Dept. of Biol., Brown Univ., PROVIDENCE. R.I. 02912, U.S.A. 



WELANDER, A. D. Ph.D., Prof. — Lab. of Radiat. Ecol., Coll. of Fish., Univ. of Washing- 

 ton. 108 Fisheries Center, SEATTLE, Wash. 98105. U.S.A. 



a Effects of graded sublethal doses of X-rays on several different stages of the embryo. 

 Oncorhynchus kisutch, O. tshawytscha, Salmo gairdnerii (Teleostei) 



h Experimental embryology. Salmo gairdnerii, Oncorhynchus kisutch, O. tshawytscha (Tel' 

 eostei) 



c Effects of low, acute doses of X-rays on early development. Oncorhynchus spec, Salmo 

 spec. (Teleostei) 



d Effects of ionizing irradiation on different .stages of embryos developing at different 

 temperatures. Oncorhynchus tshawytscha, Salmo gairdnerii (Teleostei) 



WELLAUER, P. — Div. of Cell Biol, and Chem. Embryol., Zool. Inst., Univ. of Bern, 

 Sahlistr. 8, CH-3000 BERN, Switzerland 



a Developmental significance of cytoplasmic DNA. Xenopus laevis (Anura) (in collab- 

 oration with R. WEBER) 



WELLS L. J. Ph.D., Prof. — Dept. of Anat.. School of Med., Univ. of Minnesota, MIN- 

 NEAPOLIS. Minn. 55455, U.S.A. • 



WENDER, M. B. M.D., Prof. — Dept. of Neurol., Med. Acad., Przybyszewskiego St. 49, 

 POZNA5J, Poland 



a The chemical composition and enzyme activity of developing nen,'ous tissue, with special 

 reference to the period of myelination. 



b The influence of ionizing radiation on the developing nervous system. 



c The influence of asphyxia on the developing nervous system. 



d Histoenzymatic architectonics of the developing nervous system. 



WENGER, B. S. Ph.D., Prof. — Dept. of Anat., Univ. of Saskatchewan, SASKATOON, 

 Sask., Canada 



a Glucose-6-phosphate dehydrogenase activity in the spinal and sympathetic ganglia of the 

 embryo. Gallus domesticus (Aves) 



b Nucleotides in the central nervous system and surrounding structures including sensory 

 and sympathetic ganglia. Gallus domesticus (Aves) 



c Study of the appearance of specific brain antigens during development using the micro- 

 complement fixation technique. Gallus domesticus (Aves) 



d Morphological and biochemical analysis of the mode of action of the crooked neck dwarf 

 gene. Gallus domesticus (Aves) 



WENGER, Mrs. E. L. Ph.D. — Dept. of Anat., Univ. of Saskatchewan, SASKATOON. 

 Sask., Canada 



a Glucose-6-phosphate dehydrogenase activity in the spinal and sympathetic ganglia of the 

 embryo. Gallus domesticus (Aves) 



b Nucleotides in the developing ganglia. Gallus domesticus (Aves) 



c Development and differentiation of the optic tectum and optic nuclei after early surgical 

 removal of portions of the optic cup. Gallus domesticus (Aves) 



184 



