WILCOX, M. Ph.D. — Lab. of Molec. Biol., Med. Res. Council, Hills Rd., CAMBRIDGE 



CB2 2QH, England 

 a Mechanisms underlying heterocyst spacing. Anabaena cyhndnca (Cyanopnyceae) 

 WILD, A. E. Ph.D. — Dept. of Zool., Univ. of Southampton, SOUTHAMPTON S09 5NH, 



England 

 a Protein transmission across foetal membranes. Oryctolagus cuniculus (Lagomorpha) 

 WILDE, A. G. de M.D., Ph.D., Prof. — Dept. of Anat. and Embryol., State Univ. of 



Groningen, Oostersingel 69, GRONINGEN, Netherlands 

 a Development of computer programs for the reconstruction, by incremental plotter, of 



embryonic organ structure 

 b Morphogenesis of the palatal and nose regions, studied by means of reconstructions. Mus 



musculus, Rattus norvegicus (Rodentia), Homo sapiens (Primates) 

 WILDE C E Tr Ph.D., Prof. — Dept. of Histol. and Embryol., School of Dental Med., 

 Univ. of Pennsylvania, 40th and Spruce Sts., PHILADELPHIA, Pa. 19104, U.S.A. • 

 a Organogenesis in vitro (limb bud, cranial neural crest) . Ambystoma maculatum 



(Urodela) . „ , 



b Cellular differentiation (pigment cell; ectomesenchyme) : 1. causal biochemistry of cellular 



differentiation; 2. differentiation of cytoplasmic fragments. Same species as a 



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



d Electrophoresis of molecular constituents of specific embryonic anlagen and cell types: 



fraction recovery and tissue culture of embryonic cells in the presence of selected fractions. 



Same species as a 



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



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

 f Role of probabilistic processes in cellular differentiation. Same species as e 

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

 h The energy pathways of differentiating systems. (Vertebrata) 

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



Vertebrata) 

 j The molecular basis of major and minor symmetry in embryogenesis. (Vertebrata) 

 WILDE, J. de Ph.D., Prof. — Lab. of Entomol., Agric. Univ., Binnenhaven 7, P.O.B. 62, 



WAGENINGEN, Netherlands 

 WILLIAMS, Miss G. H. Ph.D. — Dept. of Pharmacol., Hershey Med. Center, The Penn- 

 sylvania State Univ., HERSHEY, Pa. 17033, U.S.A. 

 a Regulation of levels of specific proteins (lactate dehydrogenase isoenzymes) during 

 functional development of mammary gland, and in mammary tumor. Rattus spec. 

 (Rodentia) 

 WILLIAMS, L. G. A.B. — Pacif. Marine Station, Univ. of the Pacific, DILLON BEACH, 



Calif. 94929, U.S.A. 

 a Larval development and functional morphology (photomicrography, histology). Hermis- 

 senda crassicornis, Aeolidia papulosa, Phidiana pugnax, Cadlina limbaughi, Anisodoris 

 nobilis, Triopha carpenteri (Nudibranchiata), Phyllaplysia taylori (Tectibranchiata, 

 Opisthobranchiata, Gastropoda) 

 WILLIAMS, N. E. Ph.D., Prof. — Dept. of Zool., Coll. of Lib. Arts, Univ. of Iowa, IOWA- 



City, Iowa 52240, U.S.A. 

 a Electron microscopy of developing oral apparatus. Tetrahymena spec. (Ciliata) 

 b Regulation of protein synthesis in development. Tetrahymena spec. (Ciliata) 

 WILLIER, B. H. Ph.D., Sc.D., Prof. (Emer.) — Dept. of Biol., Johns Hopkins Univ., 

 Charles and 34th Sts., BALTIMORE, Md. 21218, U.S.A. • 



a Adaptive morphogenesis in the yolk-sac membrane. Gallus domesticus (Aves) 

 b The freemartin. (Mammalia) 

 WILLIS (HORWITZ), Mrs. J. Ph.D., Prof. — Dept. of Entomol., Univ. of Illinois, 



URBANA, 111. 61801, U.S.A. 

 a Influence of juvenile hormone on cuticular proteins and morphology. Hyalophora cecropia 



(Lepidoptera), Oncopeltus fasciatus (Hemiptera) 

 WILSON, I. B. Ph.D. — Dept. of Zool. Univ. Coll. of North Wales, BANGOR, Caerns., 



Wales, U.K. 

 a Establishment of implantation and early pregnancy. Mus musculus (Rodentia) 

 b Experimental developmental morphology. Mus musculus (Rodentia) 

 WILSON, J. G. Ph.D., Prof. — The Children's Hosp. Res. Found., Elland & Bethesda Aves., 



CINCINNATI, Ohio 45229, U.S.A. 

 WILT, F. H. Ph.D., Prof. — Dept. of Zool., Univ. of California, BERKELEY, Calif. 94720, 

 U.S.A. • 



a Mechanism of origin of hemoglobin-synthesizing machinery during development. Gallus 



domesticus (Aves) 

 b Activation of protein and RNA synthesis in cleaving eggs. Strong ylocentrotus purpuratus 



(Echinoidea) 

 c RNA synthesis during development. Same species as b 



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