b Temperature dependence of the duration of embryonic development. (Gekkonoidea, Lacertilia) 



c Changes in egg shell structure during incubation. Same species as b 



d Inter-dependence of parent size, egg size, and neonatal size. Same species as b 



WESSELLS, N. K.; Dr. - Dept. of Biol. Sci., Stanford Univ., STANFORD, CA 94305, U.S.A. 



a Tissue interactions, nerve growth in embryos. Gallus domesticus (Aves), Mus musculus (Roden- 



tia) 

 WESTERMAN, R. A.; Ph.D. - Dept. of Physiol., Monash Univ., P. O. Box 92, CLAYTON, Vict. 3168, 



Australia 

 a Electrophysiology, histology, and ultrastructure of functional neuromuscular connections during 

 normal neonatal development and after various experimental reinnervations. Felis domestica 

 (Carnivora) 

 WESTON, J. A.; Ph.D. - Dept. of Biol., Univ. of Oregon, i: UGENE, OR 97403, U.S.A. 

 a Migration and differentiation of neural crest cells. Gallus domesticus (Aves), Mus musculus 



(Rodentia) 

 b Cell surface as an effector of cell specificity. Gallus domesticus (Aves) 

 c Action of morphogenctic agents on embryonic cell behavior in vivo and in vitro. Same species as 



b 

 WHITELEY, A. H.; Ph.D., Prof. - Dept. of Zool., Univ. of Washington, SEATTLE, WA 98195, U.S.A. 

 WHITT, G. S.; Ph.D., Assoc. Prof. - Dept. of Genet, and Developm., Univ. of Illinois, 515 Morrill 



Hall, URBANA, IE 61801, U.S.A. 

 a Developmental genetics: 1. expression of differential gene function during early cmbryogenesis 

 and cytodifferentiation with an emphasis on those genes responsible for isozymes; 2. correlation 

 of lactate dehydrogenase gene homology with the specificity of the gene activating mechanisms 

 during development; 3. genetical, physical, and chemical analysis of the lactate dehydrogenase 

 isozymes unique to the differentiated nervous system; 4. biochemical genetics of isozymes, 

 especially lactate dehydrogenase; 5. asynchronous allele activation during cmbryogenesis of 

 interspecific and intcrgeneric hybrids. Micropterus dolomieui, M. salmoides and other spp. 

 (Centrarchidae, Teleostei) 

 b Epigenetic and genetic control of protein synthesis during cytodifferentiation with emphasis on 

 the post-translational control of gene product (especially lactate dehydrogenase isozymes), 

 assembly and function. (Teleostei and other Vertebrata) 

 c Nucleic acid synthesis and processing during cmbryogenesis of normal and hybrid animals. 



Oryzias latipes (Teleostei) 

 WHITTAKER, J. R.; Ph.D. - Wistar Inst, of Anat. and Biol., 36th St. at Spruce, PHILADELPHIA, 



PA 19104, U.S.A. 

 a Mechanisms regulating melanogenesis in normal differentiating pigment cells and in malignant 

 tumor cells. Ciona intestinaUs (Ascidiacea), Gallus domesticus (Aves), Mesocricetus auratus 

 (Rodentia) 

 b Positional information in mosaic embryos for histospecific enzyme differentiations: acetyl- 

 cholinesterase, tyrosinase, and alkahne phosphatase. Ciona intestinaUs, Styela partita, Molgula 

 manhattensis (Ascidiacea) 

 c Differentiation of the pineal gland in vitro and in situ. Gallus domesticus (Aves) 

 WHITTEN, W. K.; D.Sc, B.V.Sc. - The Jackson Lab., BAR HARBOR, ME 04609, U.S.A. 

 a Preimplantation stages of development in vivo and in vitro. Mus musculus (Rodentia) 

 b The numerology of development in aggregation chimeras (two half, two whole and four whole 



embryos). Same species as a 

 c The mechanism of development of spontaneous sex mosaics (hermaphrodites). Same species as a 

 WILDE, Ch. E., Jr.; Ph.D., Prof. - Dept. of Zool., Univ. of Rhode Island, KINGSTON, RI 02881, 



U.S.A. 

 a Cellular differentiation (pigment cell; ectomesenchyme): 1. causal biochemistry of cellular differ- 

 entiation; 2. differentiation of cytoplasmic fragments. Ambystoma maculatum (Urodela) 

 b Morphology and causal biochemistry of striated muscle differentiation. Same species as a 

 c Cytochimeras in tissue culture from disaggregated cells of embryos of different classes. Gallus 



spec. (Aves), Mus spec. (Rodentia) 

 d Role of probabilistic processes in cellular differentiation. Same species as c 

 c Ontogeny of proteins and amino acids. Fundulus heteroclitus (Teleostei) 

 f The energy pathways of differentiating systems. (Vertebrata) 

 g Informational macromolecules in early development and differentiation. (Echinodermata, 



Vertebrata) 

 h The molecular basis of major and minor symmetry in cmbryogenesis. (Vertebrata) 

 i Temporal control of morphogenctic biformation and morphogenesis in the early zygote. (Pisces; 



Amphibia; Aves) 

 j Regeneration of lung. (Amphibia) 

 k Maintenance of site specificity m behavioral differentiation of endothehum. (Aves), Homo 



sapiens (Primates) 

 WILLIAMS, D. T.; B.S. - Merck Inst, for Therap. Res., RAHWAY, NJ 07065, U.S.A. 

 a Studies on fertilization. Mesocricetus auratus (Rodentia) 

 WILLIAMS, Miss L. A.; Ph.D., Assoc. Prof. - Dept. of Biol., West Virginia Univ., Brooks Hall, 



MORGANTOWN,WV 26506, U.S.A. 

 a Control mechanisms in the regeneration of eye lens and iris. Notophthalmus viridescens (Urodela) 

 WILLIAMS, R. C; DVM, Ph.D., Prof. - Veterinary School, Tuskegee Inst., TUSKEGEE, AL 36088, 



U.S.A. 

 a Development and calcification of teeth (utilizing a graded series of embryos and fetuses ot 

 purebred beagles). Canis familiaris (Carnivora) 



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