Mr. Günther’s and Mr. Watson’s treat of the same language, the Wīrādhurri, or, as some aborigines pronounce it, Wīrāgĕrĕ, a language spoken over a wide extent of country, from the Upper Namoi, the Castlereagh and Liverpool Plains in the north and east, to the Bawun or Darling west, and the Lachlan in the south. … I suppose this “Northerumberland dialect” was not spoken over more than one-fiftieth of the extent of country over which Wiradhuri or Kamilaroi is known.