Composition of the silicate earth: implications for accretion and core formation / Hugh St. C. O'Neill and Herbert Palme -- Early differentiation of the earth: an isotopic perspective / Malcolm T. McCulloch and Victoria C. Bennett -- Primordial solar noble-gas component in the earth: consequences for the origin and evolution of the earth and its atmosphere / Ian McDougall and Masahiko Honda -- Understanding mantle dynamics through mathematical models and laboratory experiments / R.W. Griffiths and J.S. Turner -- Plates, plumes, mantle convection, and mantle evolution / Geoffrey F. Davies -- The mantle's chemical structure: insights from the melting products of mantle plumes / I.H. Campbell -- Pyrolite: a ringwood concept and its current expression / David H. Green and Trevor J. Falloon -- Seismic structure of the mantle: from subduction zone to craton / B.L.N. Kennett and R.D. van der Hilst -- Composition and temperature of the earth's mantle: seismological models interpreted through experimental studies of earth materials / Ian Jackson and Sally M. Rigden -- The viscosity of the mantle: evidence from analyses of glacial-rebound phenomena / Kurt Lambeck and Paul Johnston -- Mantle rheology: insights from laboratory studies of deformation and phase transition / Martyn R. Drury and John D. Fitz Gerald.