Sentence Examples


  • The breeding-grounds of the ruff extend from Great Britain across N.
  • The white ruff on the neck, and the similarly coloured feathers of the wing, do not appear until the completion of the first moulting.
  • Ruff (Ber., 18 9 8, 3 1, p. 457) from nitro-di-isobutyl by reducing it to the corresponding hydroxylamino compound with aluminium amalgam and oxidizing this with chromic acid mixture.
  • Four active tetroses are possible, and three have been obtained by Ruff and Wohl from the pentoses.
  • 557.) Titanium fluoride, TiF 4, is a fuming colourless liquid boiling at 284°, obtained by distilling a mixture of titanium oxide, fluorspar and sulphuric acid; by heating barium titanofluoride, BaTiF6 (Emrich, Monats., 1904, 25, p. 907); and by the action of dry hydrofluoric acid on the chloride (Ruff and Plato, Ber., 1904, 37, p. 673).