Let me see : that would be four thousand miles down , I think -- ' -LRB- for , you see , Alice had learnt several things of this sort in her lessons in the schoolroom , and though this was not a VERY good opportunity for showing off her knowledge , as there was no one to listen to her , still it was good practice to say it over -RRB- ' -- yes , that 's about the right distance -- but then I wonder what Latitude or Longitude I 've got to ? '